Synthesis and molecular structure of the twelve-membered metallamacrocycle [Hg2(渭-2,6-dapy)2] (2,6-dapyH2 = 2,6-diacetamidopyridine)
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- 作者：Subhi A. Al-Jibori ; Shihab A.O. Ahmed ; Christoph Wagner ; Harry Schmidt ; Graeme Hogarth
- 关键词：Metallamacrocycle ; Mercury ; 2 ; 6-Diacetamidopyridine ; Linear 2-coordination ; Coordination polymer ; X-ray structure
- 刊名：Inorganica Chimica Acta
- 出版年：30 January, 2014
- 年：2014
- 卷：410
- 期：Complete
- 页码：118-121
- 全文大小：479 K
文摘
Reaction of 2,6-diacetamidopyridine (2,6-dapyH2) with mercury acetate in ethanol affords the 12-membered metallamacrocycle, [Hg2(渭-2,6-dapy)2], in high yields resulting from deprotonation of both amide groups. The crystal structure shows that two 2,6-dapy dianions bridge the dimercury centre being bound through the amide nitrogens. The mercury atoms adopt the expected linear two-coordinate geometry [N-Hg-N 169.2 (4) and 173.5 (4)掳] and the two 2,6-dapy ligands are twisted by ca. 19.3掳 with respect to one another. The metallamacrocycles form a coordination polymer with each mercury centre being weakly coordinated to two oxygen atoms of neighboring 2,6-dapy ligands [Hg鈰疧 2.970 and 3.223 脜].