Mixed ligand helicates and mesocates

Mixed ligand helicates and mesocates
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DOI:
10.1039/b515154f
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发表时间:
2006-01-01
影响因子:
3.3
通讯作者:
Ward, MD
Ward, MD
中科院分区:
化学3区
文献类型:
--
作者:
Ronson, TK;Adams, H;Ward, MD

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答1:1均配双螺旋化合物[M-II(L-1)(2)]和[M-II(L-2)(2)]的混合物[M = Cu,Zn;(L-1)(2-)和(L-2)(2-)是含有两个吡唑基酚盐末端但用不同间隔基隔开的双二齿配体]以高产率得到混合配体配合物[M(L-1)(L-2)],表明在混合配体络合物中有利的配体间相互作用。而[Cu(L-1)(L-2)]是双螺旋酸盐,[Zn(L-1)(L-2)]是两个配体的"面对面“排列的介位酸盐。
A 1 : 1 mixture of the homoleptic double helicates [M-II(L-1)(2)] and [M-II(L-2)(2)] [M = Cu, Zn; (L-1)(2-) and (L-2)(2-) are bis-bidentate ligands containing two pyrazolyl-phenolate termini but with different spacers separating them] affords the mixed ligand complexes [M(L-1)(L-2)] in high yield, indicative of a favourable inter-ligand interaction in the mixed-ligand complexes. Whereas [Cu(L-1)(L-2)] is a double helicate, [Zn(L-1)(L-2)] is a mesocate with a 'face to face' arrangement of the two ligands.