Crystal structure of 1,4,8,11-tetra-methyl-1,4,8,11-tetra-azonia-cyclo-tetra-decane bis-[chlorido-chromate(VI)] dichloride from synchrotron X-ray data

Dohyun Moon; Jong-Ha Choi

doi:10.1107/S2056989020003059

Crystal structure of 1,4,8,11-tetra-methyl-1,4,8,11-tetra-azonia-cyclo-tetra-decane bis-[chlorido-chromate(VI)] dichloride from synchrotron X-ray data

Acta Crystallogr E Crystallogr Commun. 2020 Mar 10;76(Pt 4):523-526. doi: 10.1107/S2056989020003059. eCollection 2020 Apr 1.

Authors

Dohyun Moon¹, Jong-Ha Choi²

Affiliations

¹ Beamline Department, Pohang Accelerator Laboratory, POSTECH, Pohang 37673, Republic of Korea.
² Department of Chemistry, Andong National University, Andong 36729, Republic of Korea.

Abstract

The crystal structure of title compound, (C₁₄H₃₆N₄)[CrO₃Cl]₂Cl₂, has been determined by synchrotron radiation X-ray crystallography at 220 K. The macrocyclic cation lies across a crystallographic inversion center and hence the asymmetric unit contains one half of the organic cation, one chloro-chromate anion and one chloride anion. Both the Cl^- anion and chloro-chromate Cl atom are involved in hydrogen bonding. In the crystal, hydrogen bonds involving the 1,4,8,11-tetra-methyl-1,4,8,11-tetra-azonia-cyclo-tetra-decane (TMC) N-H groups and C-H groups as donor groups and three O atoms of the chloro-chromate and the chloride anion as acceptor groups link the components, giving rise to a three-dimensional network.

Keywords: 1,4,8,11-tetramethyl-1,4,8,11-tetraazoniacyclotetradecane bis[chlorochromate(VI)] dichloride; crystal structure; hydrogen bonding; synchrotron radiation.

Grants and funding

This work was funded by Andong National University grant . Ministry of Education, Science and Technology grant . Pohang University of Science and Technology grant .