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Double-salt formation in crystal structures containing [Co(en)3]Cl3
Acta Crystallographica Section C ( IF 0.7 ) Pub Date : 2023-04-05 , DOI: 10.1107/s2053229623002711
Megan R Kollitz 1 , A Graham Lappin 1 , Allen G Oliver 1
Affiliation  

The structures of three racemic double salts of [Co(en)3]Cl3 (en is ethane-1,2-diamine, C2H8N2), namely, bis[tris(ethane-1,2-diamine-κ2N,N′)cobalt(III)] hexaaquasodium(I) heptachloride, [Co(en)3]2[Na(H2O)6]Cl7, bis[tris(ethane-1,2-diamine-κ2N,N′)cobalt(III)] hexaaquapotassium(I) heptachloride, [Co(en)3]2[K(H2O)6]Cl7, and ammonium bis[tris(ethane-1,2-diamine-κ2N,N′)cobalt(III)] heptachloride hexahydrate, (NH4)[Co(en)3]2Cl7·6H2O, have been determined, and the structural similarities with the parent compound, tris(ethane-1,2-diamine-κ2N,N′)cobalt(III) trichloride tetrahydrate, [Co(en)3]Cl3·4H2O, are highlighted. All four compounds crystallize in the trigonal space group P\overline{3}c1. When compared with the parent compound, the double salts show a modest increase in the unit-cell volume. The structure of the chiral derivative [Λ-Co(en)3]2[Na(H2O)6]Cl7 has also been redetermined at cryogenic temperatures (120 K) and the disorder noted in a previous report has been accounted for.

中文翻译:

在含有 [Co(en)3]Cl3 的晶体结构中形成复盐

[Co(en) 3 ]Cl 3 (en is ethane-1,2-diamine, C 2 H 8 N 2 )的三种外消旋复盐的结构,即双[三(乙烷-1,2-二胺-) κ 2 N , N ′)cobalt(III)] hexaaquasodium(I) heptachloride, [Co(en) 3 ] 2 [Na(H 2 O) 6 ]Cl 7 , bis[tris(ethane-1,2-diamine-) κ 2 N , N ′)钴(III)]六水合钾(I)七氯化物,[Co(en) 3 ] 2 [K(H 2 O) 6 ]Cl 7, 和双[三(乙烷-1,2-二胺-κ 2 N , N ')钴(III)]六水合铵, (NH 4 )[Co(en) 3 ] 2 Cl 7 ·6H 2 O, 有已确定,以及与母体化合物三(乙烷-1,2-二胺-κ 2 N , N ' )三氯化钴 (III) 四水合物 [Co(en) 3 ]Cl 3 ·4H 2 O 的结构相似性,被突出显示。所有四种化合物都在三角空间群P \上划线{3}c中结晶1. 与母体化合物相比,复盐的晶胞体积略有增加。手性衍生物 [Λ-Co(en) 3 ] 2 [Na(H 2 O) 6 ]Cl 7的结构也已在低温 (120 K) 下重新确定,并且先前报告中指出的无序已被解释为.
更新日期:2023-04-05
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