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首页> 外文期刊>Indian Journal of Chemistry, Section A. Inorganic, Physical, Theoretical & Analytical >Studies on the configuration and structural stability of cyanides Fe(CN)(n) (n=1-4)
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Studies on the configuration and structural stability of cyanides Fe(CN)(n) (n=1-4)

机译:氰化物Fe(CN)(n)(n = 1-4)的构型和结构稳定性研究

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The structural properties and vibrational mode of Fe(CN)(n) (n=1-4) species have been examined by using HF, B3LYP, B3P86, and B3PW91 methods at 6-311 G basis set level. The Fe(CN)(n) (n=1-4) species exhibit two states. For FeCN and Fc(CN)(3) molecules, there are doublet ((2)Sigma) and quartet ((4)Sigma) states, while for Fe(CN)(2) and Fe(CN)(4) molecules, there are triplet ((3)Sigma) and quintet ((5)Sigma) states. The ground state of FeCN is the doublet ((2)Sigma) state, both of which belong to C-infinity v point group. For Fe(CN)(2) Species, two two states ((3)Sigma and (5)Sigma states) have a V-type structure (C-2v point group) and a linear structure (D-infinity h point group), While the ground state is the quintet ((5)Sigma) state. In Fe(CN)(3) species, the doublet ((2)Sigma) state (ground state) has a equilateral triangle structure belonging to D-3h point group. But, the quartet ((4)Sigma) state has an isosceles triangle structure. The Fe(CN)(4) species have a cubic (T-d point group) structure in the triplet ((3)Sigma) state and a square(D-4h, point group) structure in the quintet ((5)Sigma) State.
机译:Fe(CN)(n)(n = 1-4)物种的结构特性和振动模式已通过使用HF,B3LYP,B3P86和B3PW91方法在6-311 G基准水平上进行了研究。 Fe(CN)(n)(n = 1-4)物种表现出两种状态。对于FeCN和Fc(CN)(3)分子,存在双峰((2)Sigma)和四重态((4)Sigma),而对于Fe(CN)(2)和Fe(CN)(4)分子,有三重态((3)Sigma)和五重态((5)Sigma)状态。 FeCN的基态为双峰((2)Sigma)态,两者均属于C-无穷大v点组。对于Fe(CN)(2)物种,两个两个状态((3)Sigma和(5)Sigma状态)具有V型结构(C-2v点组)和线性结构(D无限h点组) ,而基态是五重态((5)Sigma)状态。在Fe(CN)(3)物种中,双峰((2)Sigma)状态(基态)具有属于D-3h点组的等边三角形结构。但是,四重奏((4)Sigma)状态具有等腰三角形结构。 Fe(CN)(4)物种在三重态((3)Sigma)状态下具有立方(Td点组)结构,在五重态((5)Sigma)状态下具有方形(D-4h,点组)结构。

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