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学者姓名：燕丹
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Abstract ：
The single-crystal-to-single-crystal (SCSC) transformations of metal-organic frameworks (MOFs) are fascinating because we can directly observe the change of the crystal structure during the transformation process. It also greatly helps to understand the delicate interaction between the guest molecules and the skeleton framework and therefore fosters a deep understanding of gas storage and separation within the frameworks. Herein, we report two novel MOFs, [Cu-8(BCB)(4)(mu(3)-OH),(mu 3-OH)(2)(H2O)(8)(Py)(5)]center dot 16DMF center dot 52H(2)O (1) and [Cu-3(BCB)(2)(Py)(6)]center dot DMF center dot 11H(2)O (2) (Py = pyridine; DMF = N,N'-dimethylformamide), which were constructed through the self-assembly of Cu2+ and 4,4',4 ''-benzenetricarbonyltribenzoic acid (H3BCB) by a solvothermal reaction. Although the structure and coordination patterns of compound 1 are pretty different from those of 2, the two Cu-MOFs were prepared from identical ligands and similar reaction conditions. Interestingly, compound 1 will change to 2 wholly and gradually after the addition of a certain amount of Py with a small amount of dilute hydrochloric acid. This conversion represents a scarce example of SCSC transformation involving transition-metal-based MOFs. Moreover, with its microporous nature, compound 2 shows large carbon dioxide (CO2) uptake capability and good selectivity for CO2/N-2 separation. Furthermore, both compounds 1 and 2 could be used as excellent heterogeneous catalysts toward the cyanosilylation reaction under solvent-free conditions.
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| GB/T 7714 | Yan, Dan , Chen, Yiming , Yang, Yunhui et al. Single-Crystal-to-Single-Crystal Transformation of Two Copper(II) Metal-Organic Frameworks Modulated by Auxiliary Ligands [J]. | INORGANIC CHEMISTRY , 2022 , 61 (3) : 1360-1367 . |
| MLA | Yan, Dan et al. "Single-Crystal-to-Single-Crystal Transformation of Two Copper(II) Metal-Organic Frameworks Modulated by Auxiliary Ligands" . | INORGANIC CHEMISTRY 61 . 3 (2022) : 1360-1367 . |
| APA | Yan, Dan , Chen, Yiming , Yang, Yunhui , Guo, Zhiyong , Guo, Junfang . Single-Crystal-to-Single-Crystal Transformation of Two Copper(II) Metal-Organic Frameworks Modulated by Auxiliary Ligands . | INORGANIC CHEMISTRY , 2022 , 61 (3) , 1360-1367 . |
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A metal?organic framework (MOF) thin film constructed from Zn nodes and naphthalenediimide (NDI) linkers was grown in-situ uniformly on a transparent conducting glass substrate. This transparent thin film exhibits intriguingly high-contrast electrochromic (EC) switching between canary yellow and dark brown by means of a one-electron redox reaction at its NDI linkers. The findings provide a basic comprehension of the relations between redox state and electrochromism and enrich the application of MOF in the field of optoelectronic materials. CO 2021 Elsevier Inc. All rights reserved.
Keyword ：
Electrochromic Electrochromic In-situ growth In-situ growth Metal-organic framework film Metal-organic framework film Naphthalenediimide Naphthalenediimide Redox-active Redox-active
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| GB/T 7714 | Wu, Xianfeng , Wang, Kai , Lin, Junyu et al. A thin film of naphthalenediimide-based metal-organic framework with electrochromic properties [J]. | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2021 , 594 : 73-79 . |
| MLA | Wu, Xianfeng et al. "A thin film of naphthalenediimide-based metal-organic framework with electrochromic properties" . | JOURNAL OF COLLOID AND INTERFACE SCIENCE 594 (2021) : 73-79 . |
| APA | Wu, Xianfeng , Wang, Kai , Lin, Junyu , Yan, Dan , Guo, Zhiyong , Zhan, Hongbing . A thin film of naphthalenediimide-based metal-organic framework with electrochromic properties . | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2021 , 594 , 73-79 . |
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Photothermal therapy, an excellent therapeutic approach, has received much attention in recent years. Herein, a novel diketopyrrolopyrrole polymer (DPP-BDP) is prepared, which shows intense near-infrared (NIR) optical absorption and admirable photothermal conversion efficacy. Impressively, after assembly into nanoparticles (DB-FA), the as-prepared conjugated polymer demonstrates a uniformly distributed size around 200 nm with remarkable NIR absorption at 808 nm. Additionally, it displays high biocompatibility and photostability. More interestingly, the obtained DB-FA NPs are uptaken by cancer cells and present excellent anticancer in vitro and in vivo under 0.8 W cm(-2) or 1 W cm(-2) NIR laser irradiation, respectively. Hence, this work is expected to pave the way for using conjugated-polymer nanoparticles as a powerful photothermal agents for anticancer applications.
Keyword ：
anti-cancer anti-cancer near-infrared near-infrared photothermal agents photothermal agents photothermal therapy photothermal therapy semiconducting polymers semiconducting polymers
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| GB/T 7714 | Wei, Zuwu , Zhu, Bili , Cai, Yang et al. Near-Infrared-Absorbing Diketopyrrolopyrrole-Based Semiconducting Polymer Nanoparticles for Photothermal Therapy [J]. | PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION , 2020 , 37 (3) . |
| MLA | Wei, Zuwu et al. "Near-Infrared-Absorbing Diketopyrrolopyrrole-Based Semiconducting Polymer Nanoparticles for Photothermal Therapy" . | PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION 37 . 3 (2020) . |
| APA | Wei, Zuwu , Zhu, Bili , Cai, Yang , Yan, Dan , Lou, Yuheng , Guo, Zhiyong et al. Near-Infrared-Absorbing Diketopyrrolopyrrole-Based Semiconducting Polymer Nanoparticles for Photothermal Therapy . | PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION , 2020 , 37 (3) . |
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A novel microporous organic polymer TP-MOP containing Troger's base (TB) has been constructed by a simple one-pot reaction through the condensation of 1,3,6,8-tetrakis(4-aminophenyl)pyrene (TP) with dimethoxy-methane (DMM) under ambient condition. The N-2 adsorption isotherm of TP-MOP at 77 K indicates typical type-1 sorption behavior with a Brunauer-Emmett-Teller (BET) surface area of 1066 m(2)g(-1). Fascinatingly, it exhibits high carbon dioxide adsorption capacity up to 254.6 cm(3)g(-1) at 1 bar, 273 K. Moreover, probably due to the presence of Troger's base moiety, the isosteric heat (Q(st)) of CO2 adsorption for TP-MOP can reach as high as 40.4 kJ mol(- 1). This consequently boosts the CO2 uptake and/or CO2 selectivity over nitrogen and methane. Impressively, at 278 K, the predicted LAST (the ideal adsorbed solution theory) selectivities of TP-MOP are 93-65.8 for a CO2/N-2 (15/85 v/v) gas mixture and 8.3-6.7 for a CO2/CH4 (50/50 v/v) gas mixture at pressures varying from 0 to 1 atm, respectively.
Keyword ：
Building block Building block Gas selectivity Gas selectivity Isosteric heat Isosteric heat Porous organic polymers Porous organic polymers Troger's base Troger's base
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| GB/T 7714 | Hong, Haitao , Guo, Zhiyong , Yan, Dan et al. A Troger's base-derived microporous organic polymers containing pyrene units for selective adsorption of CO2 over N-2 and CH4 [J]. | MICROPOROUS AND MESOPOROUS MATERIALS , 2020 , 294 . |
| MLA | Hong, Haitao et al. "A Troger's base-derived microporous organic polymers containing pyrene units for selective adsorption of CO2 over N-2 and CH4" . | MICROPOROUS AND MESOPOROUS MATERIALS 294 (2020) . |
| APA | Hong, Haitao , Guo, Zhiyong , Yan, Dan , Zhan, Hongbing . A Troger's base-derived microporous organic polymers containing pyrene units for selective adsorption of CO2 over N-2 and CH4 . | MICROPOROUS AND MESOPOROUS MATERIALS , 2020 , 294 . |
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A major impediment of the incorporation of extra functional groups on skeletons of covalent organic frameworks (COFs) is the long-ordered microporosity over their networks. This problem has delayed the practical applications of these highly porous materials for chemical sensing, CO2 capture, and heterogeneous catalysis. In this work, we demonstrated a facile method named the nonstoichiometric synthon strategy to introduce functional groups onto the network of the COFs for further metallic nanoparticle confinement. By simply adjusting the ratio of primitive synthons, we can deliberately decorate the interior pores of the resultant COF materials with amine groups from the excess synthon fragments, while maintaining the structure of the parent COF. Benefiting from the excess dangling amine groups on the network, these COFs are readily available as catalytic support for the confinement of ultrasmall metallic Pd nanoclusters and further used for the benzyl alcohol oxidation reaction.
Keyword ：
benzyl alcohol oxidation reaction benzyl alcohol oxidation reaction composite catalyst composite catalyst covalent organic framework covalent organic framework metallic nanoparticle metallic nanoparticle nonstoichiometric synthon strategy nonstoichiometric synthon strategy
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| GB/T 7714 | Xu, Congying , Lin, Junyu , Yan, Dan et al. Pd Nanoclusters Supported by Amine-Functionalized Covalent Organic Frameworks for Benzyl Alcohol Oxidation [J]. | ACS APPLIED NANO MATERIALS , 2020 , 3 (7) : 6416-6422 . |
| MLA | Xu, Congying et al. "Pd Nanoclusters Supported by Amine-Functionalized Covalent Organic Frameworks for Benzyl Alcohol Oxidation" . | ACS APPLIED NANO MATERIALS 3 . 7 (2020) : 6416-6422 . |
| APA | Xu, Congying , Lin, Junyu , Yan, Dan , Guo, Zhiyong , Austin, Douglas J. , Zhan, Hongbing et al. Pd Nanoclusters Supported by Amine-Functionalized Covalent Organic Frameworks for Benzyl Alcohol Oxidation . | ACS APPLIED NANO MATERIALS , 2020 , 3 (7) , 6416-6422 . |
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Heptazine units with highly rich nitrogen sites were employed to fabricate a new porous organic polymer (POP-HE) via direct coupling of 2,5,8-trichloro-s-heptazine and 4,4',4 '',4'''-(ethene-1,1,2,2-tetrayl)tetraaniline with the mild base N, N'-diisopropylethylamine (DIPEA) in tetrahydrofuran (THF) solution. POP-HE displays good CO2 uptake capacity (50.6 cm(3) g(-1), 10 wt%, 1 bar/273 K) and highly selectively adsorptive separation of CO2 over CH4 under ambient conditions. Impressively, at 273 K, the predicted IAST selectivity of POP-HE is 47.0-13.4 for the natural gas mixture (CO2/CH4 = 5:95) at pressures varying from 0 to 1 atm. Meanwhile, the result of calculated band gap value based on Tauc plot motivated us to investigate its photocatalytic activity. POP-HE was applied as heterogeneous photocatalyst for visible light-induced selective oxidation of benzyl alcohol to benzaldehyde, and exhibited great conversion of 33.6% under irradiation of white LED light, which is much higher than that of g-C3N4. Moreover, POP-HE can be recycled up to three times without significant decrease in catalytic activity.
Keyword ：
Gas separation Gas separation Photocatalytic oxidation Photocatalytic oxidation Porous organic polymer Porous organic polymer s-Heptazine s-Heptazine
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| GB/T 7714 | Xu, Congying , Qian, Li , Lin, Junyu et al. Heptazine-based porous polymer for selective CO2 sorption and visible light photocatalytic oxidation of benzyl alcohol [J]. | MICROPOROUS AND MESOPOROUS MATERIALS , 2019 , 282 : 9-14 . |
| MLA | Xu, Congying et al. "Heptazine-based porous polymer for selective CO2 sorption and visible light photocatalytic oxidation of benzyl alcohol" . | MICROPOROUS AND MESOPOROUS MATERIALS 282 (2019) : 9-14 . |
| APA | Xu, Congying , Qian, Li , Lin, Junyu , Guo, Zhiyong , Yan, Dan , Zhan, Hongbing . Heptazine-based porous polymer for selective CO2 sorption and visible light photocatalytic oxidation of benzyl alcohol . | MICROPOROUS AND MESOPOROUS MATERIALS , 2019 , 282 , 9-14 . |
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A novel ketone-functionalized carbazolic porous framework named PBPMCz is presentedfor fluorometric determination of p-nitroaniline (PNA). PBPMCz was prepared by FeCl3-promoted oxidative coupling polymerization of 1,3,5-tris((4-(9H-carbazol-9-yl)phenyl)methanone-1-yl)benzene. The polymer possesses a BET surface area ofabove 907 m(2).g(-1) with a pore volume of 0.72cm(3).g(-1). Compared to the ketone-free framework, the green fluorescence of the probe PBPMCz is more strongly quenched by PNA. Figures of merit include (a) excitation/emission wavelengths of 366/540nm; (b) a Stern-Volmer constant (K-sv) of 2.2x10(4)M(-1), and (c) a detection limit of 1.1M. Furthermore, PBPMCz shows different quenching behaviors of PNA compared with o-nitroaniline and m-nitroaniline. The excellent performance of the fluorescent probe is ascribed to the abundant carbazole sites and ketone groups in PBPMCz. These facilitate the electron transfer and hydrogen-bonding interactions between PNA and the polymer. [GRAPHICS]
Keyword ：
Carbazolic porous framework Carbazolic porous framework Detection limit Detection limit Electron transfer Electron transfer Fluorescence sensing Fluorescence sensing Nitroaniline isomers Nitroaniline isomers Oxidative coupling Oxidative coupling Quenching mechanism Quenching mechanism
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| GB/T 7714 | Qian, Li , Hong, Haitao , Han, Mingxi et al. A ketone-functionalized carbazolic porous organic framework for sensitive fluorometric determination of p-nitroaniline [J]. | MICROCHIMICA ACTA , 2019 , 186 (7) . |
| MLA | Qian, Li et al. "A ketone-functionalized carbazolic porous organic framework for sensitive fluorometric determination of p-nitroaniline" . | MICROCHIMICA ACTA 186 . 7 (2019) . |
| APA | Qian, Li , Hong, Haitao , Han, Mingxi , Xu, Congying , Wang, Song , Guo, Zhiyong et al. A ketone-functionalized carbazolic porous organic framework for sensitive fluorometric determination of p-nitroaniline . | MICROCHIMICA ACTA , 2019 , 186 (7) . |
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A new microporous organic polymer (PCB-NH2) has been synthesized based on amine functionalized carbazole derivative by oxidative coupling polymerization with anhydrous FeCl3. Polymer PCB-NH2 exhibits microporous nature with a BET surface area of 542.4 m(2) g(-1), and shows moderately high CO2 and C2H2 adsorption capacities, 51.6 cm(3) g(-1) (10.3 wt%), 58.4 cm(3) g(-1) (7.5 wt%) at 278 K, 1 atm, respectively. Remarkably, at 278 K, the predicted LAST selectivities of PCB-NH2 are 16.7-5.8 for a CO2/CH4 (5:95 v/v) gas mixture and 34.3-21.0 for a C2H2/CH4 (50:50 v/v) gas mixture at pressures varying from 0 to 1 atm, respectively. More interesting, PCB-NH2 displays higher CO2/CH4 selectivity than its matrix polymer PCB. The isosteric heats of CO2 adsorption (QA) for PCB-NH2 and PCB further indicate that the amine group may facilitate the interaction between the polarizable CO2 molecules and the polymer by local dipole - quadrupole interactions, subsequently favors selective gas separation for these gas molecules. The high selectivity of CO2/CH4 and C2H2/CH4 makes PCB-NH2 possible candidate for future natural gas upgrading and acetylene purification.
Keyword ：
Amine moiety Amine moiety Gas separation Gas separation Microporous organic polymer Microporous organic polymer Oxidative coupling Oxidative coupling
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| GB/T 7714 | Liu, Xiaofei , Xu, Congying , Yang, Xiaohua et al. An amine functionalized carbazolic porous organic framework for selective adsorption of CO2 and C2H2 over CH4 [J]. | MICROPOROUS AND MESOPOROUS MATERIALS , 2019 , 275 : 95-101 . |
| MLA | Liu, Xiaofei et al. "An amine functionalized carbazolic porous organic framework for selective adsorption of CO2 and C2H2 over CH4" . | MICROPOROUS AND MESOPOROUS MATERIALS 275 (2019) : 95-101 . |
| APA | Liu, Xiaofei , Xu, Congying , Yang, Xiaohua , He, Yabing , Guo, Zhiyong , Yan, Dan . An amine functionalized carbazolic porous organic framework for selective adsorption of CO2 and C2H2 over CH4 . | MICROPOROUS AND MESOPOROUS MATERIALS , 2019 , 275 , 95-101 . |
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A water-stable and pH-independent sensor for qualitative and quantitative detection of nicotine in urine solution and living cell was successfully developed. This material, named MB@UiO-66-NH2, can be synthesized by encapsulating methylene blue (MB) with a well-known metal-organic framework (MOF) UiO-66-NH2 through a simple impregnation method. The fluorescence intensity of the system was significantly enhanced when a certain amount of nicotine was added. In the meanwhile, MB is reduced by reductive nicotine to form leucomethylene blue (LB). The proposed sensor displayed excellent selectivity and sensitivity toward nicotine with limit of detection (LOD) of 0.98 mu M, which is comparable or even better than that of the electrochemistry detecting methods for nicotine. The obvious enhancement and blue shift of the emission arise from the photoinduced electron transfer (PET) from LB to the UiO-66-NH2. The photophysical properties and the sensing applications of MB@UiO-66-NH2 suggest that this composite can be acted as a sensitive, selective, recyclable, and fluorogenic sensor for nicotine determination in urine solution and living cell.
Keyword ：
cell imaging cell imaging luminescence sensing luminescence sensing metal-organic framework metal-organic framework nicotine nicotine quenching mechanism quenching mechanism
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| GB/T 7714 | Yan, Dan , Lou, Yuheng , Yang, Yunhui et al. Dye-Modified Metal-Organic Framework as a Recyclable Luminescent Sensor for Nicotine Determination in Urine Solution and Living Cell [J]. | ACS APPLIED MATERIALS & INTERFACES , 2019 , 11 (50) : 47253-47258 . |
| MLA | Yan, Dan et al. "Dye-Modified Metal-Organic Framework as a Recyclable Luminescent Sensor for Nicotine Determination in Urine Solution and Living Cell" . | ACS APPLIED MATERIALS & INTERFACES 11 . 50 (2019) : 47253-47258 . |
| APA | Yan, Dan , Lou, Yuheng , Yang, Yunhui , Chen, Ziao , Cai, Yiping , Guo, Zhiyong et al. Dye-Modified Metal-Organic Framework as a Recyclable Luminescent Sensor for Nicotine Determination in Urine Solution and Living Cell . | ACS APPLIED MATERIALS & INTERFACES , 2019 , 11 (50) , 47253-47258 . |
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We describe a highly sensitive chemical sensor for the detection of the hydrazine hydrate. The chemical sensor was synthesized by simply doping a UiO-66 type metal-organic framework (MOF) with Eu3+ through a well-known post-synthetic modification method. The Eu3+ (aMOF was characterized by powder X-ray diffraction (PXRD), nitrogen gas adsorption isotherm measurements, FTIR, and ICP-MS. This luminescent probe exhibits strong emission intensity, and more significantly, displays various merits, such as high selectivity with notable photoluminescence quenching effect, rapid response time, and remarkable sensitivity with low detection of limit for hydrazine recognition. Under the optimal experimental conditions, hydrazine hydrate can be detected by this method in concentrations as low as 0.18 RM, which is much lower than the threshold limit value (10 ppb, approximate to 0.3 mu M) of hydrazine exposure recommended by the U.S. Environmental Protection Agency (EPA). More interestingly, a portable film sensing device derived from this MOF display quick response to hydrazine hydrate within 90 s. A possible luminescent quenching mechanism for hydrazine hydrate was also investigated.
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| GB/T 7714 | Yang, Yunhui , Liu, Xiaofei , Yan, Dan et al. Europium ion post-functionalized zirconium metal-organic frameworks as luminescent probes for effectively sensing hydrazine hydrate [J]. | RSC ADVANCES , 2018 , 8 (31) : 17471-17476 . |
| MLA | Yang, Yunhui et al. "Europium ion post-functionalized zirconium metal-organic frameworks as luminescent probes for effectively sensing hydrazine hydrate" . | RSC ADVANCES 8 . 31 (2018) : 17471-17476 . |
| APA | Yang, Yunhui , Liu, Xiaofei , Yan, Dan , Deng, Ping , Guo, Zhiyong , Zhan, Hongbing . Europium ion post-functionalized zirconium metal-organic frameworks as luminescent probes for effectively sensing hydrazine hydrate . | RSC ADVANCES , 2018 , 8 (31) , 17471-17476 . |
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