Cu(C2N4H4)2Br2·2H2O: an antiferromagnetic cyanoguanidine coordination compound and its characterization
Author:
Zhang Jing1, Corkett Alex J.1, van Leusen Jan1, Nelson Ryky1, Dronskowski Richard23
Affiliation:
1. Institute of Inorganic Chemistry, RWTH Aachen University , 52056 Aachen , Germany 2. Chair of Solid-State and Quantum Chemistry , Institute of Inorganic Chemistry, RWTH Aachen University , 52056 Aachen , Germany 3. Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic , 7098 Liuxian Blvd, Nanshan District , Shenzhen , China
Abstract
Abstract
Phase-pure copper(II) cyanoguanidine bromide hydrate, Cu(C2N4H4)2Br2·2H2O (1), was precipitated from aqueous solution and its structure was solved and refined from single-crystal X-ray diffraction data at 100 K. 1 crystallizes in space group P21/n with a = 12.09(3) Å, b = 3.925(9) Å, c = 13.79(3) Å, β = 96.62(6)°, Z = 2, and V = 650(2) Å3. The copper(II) cation is coordinated by two cyanoguanidine molecules adopting the cyanoimine shape and four bromide anions in a Jahn–Teller-distorted motif, forming infinite chains of edge-sharing octahedra along the crystallographic b axis. IR spectroscopic and magnetic susceptibility measurements were carried out in addition to density-functional electronic-structure calculations performed to assess both the magnetic ground state and the exchange interactions. Experiment and theory agree as regards antiferromagnetism and weak magnetic exchange.
Funder
China Scholarship Council RWTH Aachen University
Publisher
Walter de Gruyter GmbH
Subject
General Chemistry
Reference52 articles.
1. Beilstein, F., Geuther, A. Liebigs Ann. Chem. 1858, 108, 88–102, https://doi.org/10.1002/jlac.18581080119. 2. Barrio, J., Volokh, M., Shalom, M. J. Mater. Chem. A 2020, 8, 11075–11116, https://doi.org/10.1039/d0ta01973a. 3. Williams, P. A. M., Ferrer, E. G., Baeza, N., Piro, O. E., Castellano, E. E., Baran, E. J. Z. Anorg. Allg. Chem. 2005, 631, 1502–1506, https://doi.org/10.1002/zaac.200500002. 4. Kose, M., Duman, S. E., McKee, V., Akyol, I., Kurtoglu, M. Inorg. Chim. Acta 2017, 462, 281–288, https://doi.org/10.1016/j.ica.2017.04.005. 5. Gungor, O., Kurtar, S. N. K., Koçer, F., Kose, M. Inorg. Nano-Met. Chem. 2020, 51, 627–635, https://doi.org/10.1080/24701556.2020.1800033.
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
|
|