CAJ | 학술논문

研究了吡唑类配体与M(CO)6(M=Cr，w)的光化学反应.合成了一系列的含吡唑配体的五羰基铬钨配合物.研究了该类化合物的电化学性质.结果表明：铬系列化合物存在一对准可逆的氧化还原峰，而钨系列化合物只存在一个不可逆的氧化峰.用X射线单晶衍射测定了化合物3，4，5-三甲基吡唑五羰基铬的晶体结构.该晶体为单斜晶系，空间群为P2(1)/m，晶胞参数为：a=0.9106(3)am，b=0.7627(2)am，c=0.9637(3)am，β=91.855(5)o，V=0.6689(3)nm3，Z=2，R=O.042.Cr为六配位的变形八面体构型.
연구료필서류배체여M(CO)6(M=Cr，w)적광화학반응.합성료일계렬적함필서배체적오탄기락오배합물.연구료해류화합물적전화학성질.결과표명：락계렬화합물존재일대준가역적양화환원봉，이오계렬화합물지존재일개불가역적양화봉.용X사선단정연사측정료화합물3，4，5-삼갑기필서오탄기락적정체결구.해정체위단사정계，공간군위P2(1)/m，정포삼수위：a=0.9106(3)am，b=0.7627(2)am，c=0.9637(3)am，β=91.855(5)o，V=0.6689(3)nm3，Z=2，R=O.042.Cr위륙배위적변형팔면체구형.
A series of carbonylchromium and tungsten complexes containing pyrazole ligands [ M(CO)5L] has been synthesized by the photochemical reactions of pyrazole ligands with M (CO)6 ( M=Cr or W). Their electrochemical behaviors have also been investigated by cyclic voltammetry, indicating that the chromium complexes exhibit one reversible or quasi-reversible couple corresponding to a one-electron oxidation, but the tungsten complexes have one irreversible oxidation process. The crystal structure of Cr( CO)5L (Lrepresents 3,4, 5-trimethylpyrazole) was determined by X-ray diffraction method, which is monoclinic,space group P2(1)/m with unit cell parameters a=0.9106(3) nm, b=0.7627(2) nm, c=0.9637(3)nn, β =91.855(5)°, V=0.6689(3) nm3, Z=2, R =0.042. The central metal of Cr is six-coordinated with a quasi-octahedral coordination geometry.