Theoretical studies of organometallic compounds. 6. Structures and bond energies of M(CO)n+, MCN, and M(CN)2- (M = silver, gold; n = 1-3)
Theoretical studies of organometallic compounds. 6. Structures and bond energies of M(CO)n+, MCN, and M(CN)2- (M = silver, gold; n = 1-3)
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DOI：
10.1021/om00035a054
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发表时间：
1993-11
期刊：
影响因子：
2.8
通讯作者：
A. Veldkamp;G. Frenking
中科院分区：
文献类型：
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作者：
A. Veldkamp;G. Frenking
在过渡金属羰基配合物的大类中，最近又加入了一些具有特殊性质的Ag（I）和Au（I）配合物。Hurlburt等人3报道了[Ag（CO）][B（OTeF 5）4]的合成和X射线结构分析，这是第一个可分离的银羰基络合物。同一个小组现在已经成功地分离和结晶了热非常不稳定的配合物[Ag-（CO）2][B（OTeFs）4]。4该化合物的X射线结构分析是M（CO）2+配合物的第一个例子。与此同时，Willner等5报道了第一个热稳定的Au（CO）2+配合物[Au（CO）2][Sb 2 F2]的合成和振动光谱。这些羰基配合物的一个显著特征是发现CO的伸缩频率f2相对于CO显著地向高波数移动，而大多数其他金属羰基化合物显示出较低的伸缩频率f2 ~（CO-1，5
To the large class of transition metal carbonyl com-plexes2 some intriguing Ag (I) and Au (I) complexes with unusual properties have recently been added. Hurlburt et al. 3 reported the synthesis and X-ray structure analysis of [Ag (CO)][B (OTeF5) 4], the first isolable silver carbonyl complex. The same group has now succeeded in isolating and crystallizing the thermally very labile complex [Ag-(CO) 2][B (OTeFs) 4]. 4 The X-ray structure analysis of this compound is the first example of a M (CO) 2+ complex. At the same time, Willner et al. 5 reported the synthesis and vibrational spectrum of the first thermally stable Au (CO> 2+ complex, ie [Au (CO) 2][Sb2Fji], A remarkable feature of these carbonyl complexes is the finding that the CO stretching frequency vco is significantly shifted toward higher wavenumbers relative to CO, whereas mostother metal carbonyls exhibit lower stretching frequencies f'co-1, 5