Neutral, Radical [CpNi(dithiolene)] Complexes with Flexible, Nonplanar Seven‐Membered Rings: [CpNi{S
<sub>2</sub>
C
<sub>2</sub>
S
<sub>2</sub>
(CH
<sub>2</sub>
)
<sub>2</sub>
X}] (X = CH
<sub>2</sub>
, CF
<sub>2</sub>
, C=CH
<sub>2</sub>
, S, C=O)
作者:Mitsushiro Nomura、Michel Geoffroy、Prashant Adkine、Marc Fourmigué
DOI:10.1002/ejic.200600649
日期:2006.12
Neutral, radical [CpNi(dithiolene)] complexes fused with seven-membered rings, formulated as [CpNiS2C2S2(CH2)2X}] (X = CH2, CF2, C=CH2, S), have been synthesized in 30-60 % yields from the reactions of nickelocene with the corresponding neutral, square-planar, (dithiolene)nickel complexes [NiS2C2S2(CH2)2X}2]. [CpNiS2C2S2(CH2)2X}] (X = C=O) was prepared from nickelocene and [1,3]dithiolo[4,5-b][1
中性、自由基 [CpNi(dithiolene)] 与七元环稠合的复合物,公式为 [CpNiS2C2S2(CH2)2X}] (X = CH2, CF2, C=CH2, S),已在 30-60 年合成茂镍与相应的中性方形平面(二硫烯)镍配合物 [NiS2C2S2(CH2)2X}2] 反应的产率百分比。[CpNiS2C2S2(CH2)2X}] (X = C=O) 由二茂镍和 [1,3]dithiolo[4,5-b][1,4]dithiepine-2,6-dione 在加热或光化学条件。所有配合物分别对阳离子和阴离子形式表现出可逆的氧化和还原波。七元环中的端基 (X) 按以下顺序将其氧化还原电位转变为阳极电位:CF2 > C=O > S > C=CH2 > CH2。[CpNiS2C2S2(CH2)2(X)}] 的单线态 EPR 响应出现在 g ≈ 2.0514-2 处。0529 在室温下的二氯甲烷溶液中。在二氯甲烷溶液中,在