A　binuclear　Cu(I)　complex　[Cu(PCNP)(mepypz)]2(BF4)2　(1　,　PCNP　=　2,6-bis(diphenylphosphine)-benzonitrile,　mepypz　=　2-methyl-6-(1H-pyrazol-3-yl)-pyridine　was　synthesized　from　the　reaction　of　Cu(CH3CN)4BF4　,　PCNP　and　mepypz　in　CH(2)C(l)2　at　room　temperature.　The　compound　was　characterized　by　NMR,　UV-vis　and　X-ray　single-crystal　structure　analysis.　It　crystallizes　in　monoclinic　space　group　P21/c　with　a　=　14.0139(5),　b　=　11.8149(3),　c　=　27.1248(10)　angstrom,　beta　=　96.686(4)degrees,　V　=　4460.6(3)　angstrom(3)　,　Z　=　2,　M-r　=　1561.97,　D-c　=　1.163　g/cm3　,　F(000)　=　1600.0,　mu　=　1.774　mm-1　,　GOOF　=　1.071,　the　final　R　=　0.0523　and　wR　=　0.1412　for　7919　observed　reflections　with　I　＞　2　sigma(I).　The　Cu　atoms　in　the　complex　are　four-coordinated　and　adopt　a　distorted　tetrahedral　coordination　geometry.　In　the　solid　state,　the　complex　exhibits　yellowish-green　emission　with　a　peak　wavelength　of　546　nm,　a　lifetime　of　390　mu　s,　and　a　quantum　yield　of　0.45　at　room　temperature.　The　temperature-dependent　investigation　of　luminescent　properties　suggests　that　the　complex　emits　thermally　activated　delayed　fluorescence　(TADF)　at　room　temperature.