Copper(I) thiocyanate networks with aromatic diimine ligands. (5th September 2016)

• Record Type: Journal Article
• Authors: Ayala, Gerardo; Tronic, Tristan A.; Pike, Robert D.
• Is Part Of: Polyhedron. Volume 115(2016)
• Page Start: 257
• Page End: 263
• Publication Date: 2016-09-05
• Subjects: Copper thiocyanate complexes -- Crystal structures -- Diimine ligands -- Network structures -- Thermogravimetry; Chemistry, Inorganic -- Periodicals; Chimie inorganique -- Périodiques; Organometaalverbindingen; Anorganische chemie; 546.05
• DOI: 10.1016/j.poly.2016.05.030
• Languages: English
• ISSNs: 0277-5387

Abstract

Graphical abstract: Copper(I) thiocyanate forms complexes (CuSCN)2 (Qox), (CuSCN)(Qnz), (CuSCN)2 (Ptz), (CuSCN)2 (2-NH2 Pyz), and (CuSCN)(2-MeOPyz) (Qox = quinoxaline, Qnz = quinazoline, Ptz = phthalazine, 2-NH2 Pyz = 2-aminopyrazine, and 2-MeOPyz = 2-methoxypyrazine). In the Qnz and 2-MeOPyz complexes the ligand is monodentate, while in others the ligand is bridging bidentate. Ptz forms staple-like bridges. Abstract: A total of five new CuSCN-LL complexes with aromatic diimine ligands, LL = quinoxaline (Qox), quinazoline (Qnz), phthalazine (Ptz), 2-aminopyrazine (2-NH2 Pyz), and 2-methoxypyrazine (2-MeOPyz) have been prepared and characterized by crystallographic methods. The following compounds are reported: (CuSCN)2 (Qox) (1 ), (CuSCN)(Qnz) (2 ), (CuSCN)2 (Ptz) (3 ), (CuSCN)2 (2-NH2 Pyz) (4 ), and (CuSCN)(2-MeOPyz) (5 ). Compounds1 –4 were prepared using an extended aqueous reflux method in the presence of KSCN and ammonia. Compound5 was prepared by directly reacting solid CuSCN with the liquid ligand. In complexes2 and5, LL is monodentate, while in others LL is bridging bidentate. All network structures are 2-D sheets, consisting of μ2 -LL-crosslinked CuSCN ladders for1 and4, LL-decorated CuSCN sheets for2 and5, and unusual μ2 -LL-"stapled" sheets for3 .