镍(Ⅱ)配合物Ni(N,N′-二羧甲基-苯并咪唑)_2·(H_2O)_4的合成、结构与量子化学研究  

Synthesis,Crystal Structure and Quantum Chemistry of Nickel(Ⅱ) complex Ni(1,3-diacetoxylbenzimidazole)_2·(H_2O)_4

在线阅读下载全文

作  者:张志坚[1] 邝代治[2] 张复兴[2] 蒋伍玖[2] 庾江喜[2] 朱小明[2] 

机构地区:[1]衡阳师范学院生命科学系,湖南衡阳421008 [2]衡阳师范学院化学与材料科学系,湖南衡阳421008

出  处:《衡阳师范学院学报》2014年第3期40-44,共5页Journal of Hengyang Normal University

基  金:湖南省科技计划项目一般项目资助(2014FJ3060);湖南省重点实验室资助项目(13K03;13K04;13K05)

摘  要:氯化镍与N,N′-二羧甲基-苯并咪唑合成配合物Ni(N,N′-二羧甲基-苯并咪唑)2·(H2O)4,经元素分析、IR和X-射线衍射表征分子结构,该化合物晶体学参数:三斜晶系,空间群P1,晶体学数据:a=0.735 52(3)nm,b=0.942 83(5)nm,c=0.964 64(5)nm,α=81.758(2)°,β=96.817(6)°,γ=78.312(2)°,V=0.633 65(5)nm3,Z=1,Dc=1.564g/cm3,μ(MoKα)=0.838cm-1,F(000)=310,R1=0.0272,wR2=0.0718[对I>2σ(I)的衍射]和R1=0.027 7,wR2=0.072 2(对所有的衍射)。共收集2 058个数据,其中独立衍射点2 058个,可观察衍射[I>2σ(I)]点2 017个用于结构精修。配体与Ni原子通过羧基氧原子进行配合。中心镍原子与配位原子形成畸变八面体构型。利用量子化学G98W软件,对其结构进行优化,在Lanl2dz基组对配合物的稳定性、前沿分子轨道组成及能量进行研究。A Nickel(Ⅱ) complex Ni (1 ,3-diacetoxylbenzimidazole)2 ·(H2O)4 has been synthesized and characterized by elemental analyses ,IR and X - ray diffraction .Crystal data for this complex :triclinic system ,space group P1 ,with a =0.73552 (3 ) nm ,b = 0.94283 (5 )nm ,c = 0.96464 (5 )nm ,α = 81.758 (2 )°; ,β = 96.817 (6 )°; ,γ = 78.312 (2 )°; ,V =0.63365(5)nm^3 ,Z = 1 ,Dc = 1.564 g/cm^3 ,μ(MoKα) = 0.838cm^-1 ,F(000) = 310 ,R1 = 0.0272 ,,wR2 = 0.0718 [I 〉2σ(I) observed reflections] and R1 = 0.0277 ,wR2 = 0.0722 (all reflections) .A total of 2058 reflections collected ,2058 were unique and 2017 observed [I > 2σ(I)]ones were used in the succeeding refinement .The molecular structure adopts a distorted octahedral geometry around the Ni(Ⅱ) atom .The study on title complex has been performed ,with quantum chemistry calculation by means of G98W package and taking Lanl2dz basis set .The stabilities of the complex ,the orbital energies and composition characteristics some frontier molecular orbital have been investigated.

关 键 词:镍配合物 晶体结构 量子化学 

分 类 号:O614.813[理学—无机化学]

 

参考文献:

正在载入数据...

 

二级参考文献:

正在载入数据...

 

耦合文献:

正在载入数据...

 

引证文献:

正在载入数据...

 

二级引证文献:

正在载入数据...

 

同被引文献:

正在载入数据...

 

相关期刊文献:

正在载入数据...

相关的主题
相关的作者对象
相关的机构对象