Synthesis and Structures of Selected Triazapentadienate of Li, Mn, Fe, Co, Ni, Cu(I), and Cu(II) using 2,4-N,N′-Disubstituted 1,3,5-Triazapentadienate Anions as Ancillary Ligands:

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• 作者：Meisu Zhou ; Yanping Song ; Tao Gong ; Hongbo Tong ; Jianping Guo ; Linhong Weng ; Diansheng Liu
• 刊名：Inorganic Chemistry
• 出版年：2008
• 出版时间：August 4, 2008
• 年：2008
• 卷：47
• 期：15
• 页码：6692-6700
• 全文大小：293K
• 年卷期：v.47,no.15(August 4, 2008)
• ISSN：1520-510X

文摘

Addition reaction of ArN(SiMe₃)M (Ar = Ph or 2,6-ⁱPr₂−C₆H₃ (Dipp); M = Li or Na) to 2 equivalents of α-hydrogen-free nitrile RCN (R = dimethylamido) gave the dimeric [M{N(Ar)C(NMe₂)NC(NMe₂)N(SiMe₃)}]₂ (1a, Ar = Ph, M = Li; 1b, Ar = Ph, M = Na; 1c, Ar = Dipp, M = Li). 1d was obtained by hydrolysis of 1c at ambient temperature. Treatment of a double ratio of 1a or 1b with anhydrous MCl₂ (M = Mn, Fe, Co) yielded the 1,3,5-triazapentadienato complexes [M{N(Ph)C(NMe₂)NC(NMe₂)N(SiMe₃)}₂] (M = Mn, 2; Fe, 3; Co, 4) and with NiCl₂·6H₂O gave [M{N(Ph)C(NMe₂)NC(NMe₂)N(H)}₂] (M = Ni, 5). Treatment of an equiv of 1c with anhydrous CuCl in situ and in air led to complexes [{N(Dipp)C(NMe₂)NC(NMe₂)N(SiMe₃)}CuPPh₃] 6 and [Cu{N(Dipp)C(NMe₂)NC(NMe₂)N(H)}₂] 7, respectively. 1c, 1d, and 2−7 were characterized by X-ray crystallography and microanalysis. 1c, 1d, 5, and 6 were well characterized by ¹H, ¹³C NMR, 1c by ⁷Li, and 6 by ³¹P NMR as well. The structural features of these complexes were described in detail.