Coordination chemistry of anticrowns. Complexation of cyclic trimeric perfluoro-o-phenylenemercury (o-C6F4Hg)3 with compounds containing an active methylene groupстатья
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Дата последнего поиска статьи во внешних источниках: 27 марта 2017 г.
Аннотация:The reactions of three-mercury anticrown (o-C6F4Hg)3 (1) with acetoacetic ester (AE),
malonic ester (ME), and malonodinitrile (MN) afford 1 : 1 complexes {[(o-C6F4Hg)3](AE)} (3),
{[(o-C6F4Hg)3](ME)} (4), and {[(o-C6F4Hg)3](MN)} (5). The structures of complexes 3—5
were determined by X-ray diffraction analysis. Complex 3 has a discrete structure in the solid
state, whereas complexes 4 and 5 form in the crystal extended stacks representing polydecker
sandwiches with alternating molecules of 1 and ME or MN. According to the X-ray diffraction
and IR spectral data, the molecule of AE in complex 3 is in the keto form.