Triacetonitrile(1,4,7-trimethyl-1,4,7-triazacyclononane)cobalt(II) bis(tetraphenylborate)

IUCrData Pub Date : 2024-06-01 DOI:10.1107/S241431462400539X

Jeongcheol Shin , Jin Kim , Jonghoon Choi , I. Brito (Editor)

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Abstract

The title complex exhibits a distorted octahedral geometry about the cobalt centre. The divalent cobalt ion is surrounded by three acetonitrile solvento ligands and one tridentate tacn ligand.

The title cobalt(II) complex, [Co(C₂H₃N)₃(C₉H₂₁N₃)](C₂₄H₂₀B)₂ or [(tacn)Co(NCMe)₃][BPh₄]₂, has been characterized by single-crystal X-ray diffraction. It incorporates the well-known macrocyclic tacn (1,4,7-trimethyl-1,4,7-triazacyclononane) ligand, which is coordinated facially to the metal center. The complex crystallizes in space group P2₁/c with Z = 4. The divalent cobalt ion exhibits a six-coordinate octahedral geometry by one tacn and three acetonitrile ligands. Two non-coordinating tetraphenylborate (BPh₄⁻) anions are also present.

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三乙酰-腈-(1,4,7-三甲基-1,4,7-三氮杂环壬烯)双钴(II)-(四苯基硼酸盐)

标题为钴(II)配合物 [Co(C2H3N)3(C9H21N3)](C24H20B)2或[(tacn)Co(NCMe)3][BPh4]2，已通过单晶 X 射线衍射进行了表征。它含有著名的大环 tacn（1,4,7-三甲基-1,4,7-三氮杂环壬烯）配体，该配体与金属中心面配位。该复合物的结晶空间群为 P21/c，Z = 4。二价钴离子通过一个 tacn 配体和三个乙酰腈配体呈现出六配位的八面体几何结构。此外，还有两个非配位的四苯基硼酸（BPh4 -）阴离子。

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