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合成了 3个二硫代氨基甲酸锌配合物 [Zn2 (S2 CNBun2 ) 4 ] ( 1) ,[Zn(S2 CNBy2 ) 2 ] ( 2 )和 [Zn(S2 CNBy2 ) 2 Py] ( 3 ) (Bun=正丁基 ,By =苄基 ,Py =吡啶 ) .测定了它们的晶体结构 ,红外光谱和热稳定性 .1为单斜晶系 ,空间群C2 /c,晶胞参数a =2 3 3 2 9( 3 )nm ,b =1 70 90 ( 2 )nm ,c =1 6115 ( 2 )nm .α =90° ,β =12 7 5 60 ( 10 )° ,γ =90° .2为正交晶系 ,空间群Pbcn ,晶胞参数a =1 62 193 ( 11)nm ,b =1 90 0 10 ( 12 )nm ,c =0 93 795 ( 6)nm .α =90° ,β =90° ,γ =90° .3为三斜晶系 ,空间群P 1,晶胞参数a =0 864 18( 6)nm ,b =1 3 115 6( 9)nm ,c =1 662 3 8( 11)nm .α =10 6 3 98( 1)° ,β =92 63 3 ( 1)° ,γ =10 7 461( 1)° .1为二聚体 ,属典型的荒氨酸金属配合物结构类型 .2为一单核四配位化合物 ,而在荒氨酸金属配合物中 (除Ln ,Ac系外 )该结构类型非常少见 .2中引入吡啶环得到 3 ,3为一五配位化合物 ,吡啶环的引入说明 2的中心离子处于配位不饱和状态 ,这与以往报道相吻合 .1的热稳定性质研究发现其在 2 5 1℃有升华现象 ,可作为MOCVD的前驱物
Three zinc dithiocarbamates [Zn2 (S2CNBun2) 4] (1), [Zn (S2CNBy2) 2] (2) and [Zn (S2CNBy2) 2Py] = N -butyl, By = benzyl, Py = pyridine). Their crystal structures, IR spectra and thermal stability were determined.1is monoclinic with space group C2 / c and unit cell parameter a = 2 3 3 (2) nm, c = 1 6115 (2) nm. Α = 90 °, β = 12 7 5 60 (10) °, γ = 90 °. 2 is positive The crystal structure of Pbcn is as follows: a = 1 62 193 (11) nm, b = 1 90 0 10 (12) nm, c = 0 93 795 (6) nm. °, γ = 90 ° .3 is a triclinic system with a space group P 1 with unit cell parameters a = 0 864 18 (6) nm, b = 1 3 115 6 (9) nm and c = 1 662 3 8 11) nm. Α = 10 6 3 98 (1) °, β = 92 63 3 (1) °, γ = 10 7 461 (1) °. 1 is a dimer and is a typical diormate metal complex Structure type .2 is a mononuclear tetracoordinate compound, and in the Ara-metal complexes (except Ln, Ac system) the type of structure is very rare .2 into the pyridine ring to get 3, a five-coordinate The introduction of the compound, pyridine ring shows that the central ion of 2 is in a state of coordination and unsaturation Thermal stability properties of the conventional match reports .1 sublimation phenomenon found in 2 5 1 ℃, as MOCVD precursor