Molecular and crystal structure of two nickel(II) 1,2-dithiooxalato-S,S′ complexes using 1-(Rbenzyl)pyridinium cation (R = 4′-bro

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• 作者：Xie ; Jingli ; Ren ; Xiaoming ; Ni ; Zhaoping ; Zhang ; Wenwei ; Yao ; Yuangen ; Meng ; Qingjin
• 关键词：1 ; (4 ; Bromo ; 2 ; fluorobenzyl)pyridinium ; 1 ; (4 ; bromobenzyl)pyridinium ; bis(1 ; 2 ; dithio ; oxalato ; S ; S)nickelate(II) complex ; crystal structure
• 刊名：Journal of Chemical Crystallography
• 出版年：2003
• 出版时间：2003
• 年：2003
• 卷：33
• 期：1
• 页码：65-72
• 全文大小：143 KB

文摘

[BrFPy]₂[Ni(dto)₂] (1) and [BrPy]₂[Ni(dto)₂] (2) complexes have been prepared by reaction of Na₂[Ni(S₂C₂O₂)₂] and the corresponding 1-(Rbenzyl)pyridinium bromide salt (R₁ = 4′-bromo-2′-fluoro, R₂ = 4′-bromo). The crystallographic data for 1: monoclinic P2₁/c, a = 14.2192(1) Å, b = 14.2533(4) Å, c = 15.6535(3) Å, β = 96.463(1)°, V = 3152.34(11) ų, Z = 4. Two cations, [Br₁F₁Py]⁺ and [Br₂F₂Py]⁺, both adopt a conformation where both the aromatic rings are twisted to the corresponding N(1)–C(10)–C(11) or N(2)–C(22)–C(23) reference plane. Data for 2: triclinic $P\backslash bar\{1\}$, a = 9.4042(3) Å, b = 9.6814(4) Å, c = 10.3357(4) Å, α = 80.155(1)°, β = 65.245(1)°, γ = 64.259(1)°, V = 769.68(5) ų, Z = 1. The [Ni(dto)₂]²⁻ anion exhibits a quasi-planar structure in both complexes. An extensive hydrogen bond network of C–H ⋅ ⋅ ⋅ O is clearly observed in 1 and 2, and two complexes show similar crystal packing.