Syntheses and magnetic properties of three transition metal complexes based on 4′-p-tolyl-2, 2′:6′, 2″-terpyridine and SCN−. (15th November 2019)

• Record Type: Journal Article
• Authors: Zhao, Fang-Hua; Jia, Xin-Meng; He, Yuan-Chun; Huang, Long-Wei; Yan, Xiao-Qing; Li, Zhong-Lin; Li, Jia-Xing; Feng, Rui; You, Jin-Mao
• Is Part Of: Polyhedron. Volume 173(2019)
• Publication Date: 2019-11-15
• Subjects: Terpyridine ligand -- Transition metal complexes -- SCN− -- Crystal structure -- Magnetic property; Chemistry, Inorganic -- Periodicals; Chimie inorganique -- Périodiques; Organometaalverbindingen; Anorganische chemie; 546.05
• DOI: 10.1016/j.poly.2019.114124
• Languages: English
• ISSNs: 0277-5387

Abstract

Graphical abstract: Syntheses and magnetic properties of three transition metal complexes based on 4′-p-tolyl-2, 2′:6′, 2″-terpyridine (ttpy) and SCN − are described. The three complexes shows three distinct structures for the versatile coordination fashions of the metal centers and SCN −, and all shows the supramolecular structures connected by CH⋯S hydrogen bonds and π⋯π interactions. Abstract: Three transition metal complexes based on 4′-p-tolyl-2, 2′:6′, 2″-terpyridine (ttpy) and SCN −, [Mn2 (ttpy)2 (SCN)3 Cl] (1 ), [Co2 (ttpy)2 (SCN)4 ]·H2 O (2 ) and [Ni(ttpy)(SCN)2 ]2 (3 ), have been hydrothermally synthesized. The single-crystal X-ray diffraction analyses reveal that the three complexes display discrete molecules with three distinct structures caused by the different coordination geometry of the transition metal centers. Complex 1 contains two neutral independent components of mononuclear [Mn(ttpy)(SCN)2 ] and binuclear [Mn(ttpy)(SCN)Cl]2 . Complex 2 shows an ion-pair bicomponent structure of [Co(ttpy)2 ] 2+ and [Co(SCN)4 ] 2− . Complex 3 shows a binuclear structure bridged by two end-to-end bridging SCN − anions. Magnetic properties of the three complexes have been investigated.