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Studies on cobalt(III) complexes of a cyanoethyl derivative of an isomeric hexamethyl tetraazamacrocyclic ligand. J INCL PHENOM MACRO 2021. [DOI: 10.1007/s10847-021-01110-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Synthesis, characterization and antibacterial studies of zinc(II) complexes with hexamethyl-tetraazacyclotetradecadiene Me6[14]diene and C-chiral isomers of its reduced analogue. J INCL PHENOM MACRO 2017. [DOI: 10.1007/s10847-017-0693-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Bernal I, Watkins S. A list of organometallic kryptoracemates. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2015; 71:216-21. [DOI: 10.1107/s2053229615002636] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 02/07/2015] [Indexed: 11/11/2022]
Abstract
The vast majority of racemic solutions of chiral compounds apparently crystallize at room temperature in non-Sohncke space groups as racemic crystals. However, kryptoracemic crystals composed of nearly enantiomeric pairs occasionally crystallize at room temperature, or appear as low-temperature phases, in Sohncke space groups. As a complement to the previously published catalog of organic kryptoracemates [Fábián & Brock (2010).Acta Cryst.B66, 94–103], 1412 chiral organometallic crystal structures have now been extracted from the Cambridge Structural Database and analyzed. 26 are listed herein as credible kryptoracemates. The possible influence of temperature is discussed, together with some problems in characterizing and classifying these structures.
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