TY - JOUR
T1 - Synthesis and crystal structures of cadmium(II) complexes of 1,3-diazinane-2-thione (diaz); [Cd(diaz)4Cl2], [Cd(diaz)2(NCS)2] and [Cd(diaz)2(N3)2]n
AU - Alharthi, Abdulrahman I.
AU - Ahmad, Saeed
AU - Rüffer, Tobias
AU - Lang, Heinrich
AU - Alotaibi, Mshari A.
AU - Murtaza, Ghulam
AU - Isab, Anvarhusein A.
N1 - Publisher Copyright:
© 2017 Elsevier B.V.
PY - 2018
Y1 - 2018
N2 - Three cadmium(II) complexes of 1,3-diazinane-2-thione (diaz); dichloridotetrakis(1,3-diazinane-2-thione)cadmium(II), [Cd(diaz)4Cl2] (1), bis(thiocyanato-κN)bis(1,3-diazinane-2-thione)cadmium(II), [Cd(diaz)2(NCS)2] (2) and poly[diazidobis(1,3-diazinane-2-thione)cadmium(II)], [Cd(diaz)2(N3)2]n (3) were prepared and their crystal structures were determined by X-ray crystallography. The compounds 1 and 2 exist in the monomeric forms as discrete nonionic molecules. In 1, the cadmium atom is octahedrally coordinated by two trans chloride ions and four diaz ligands, while in 2, it is bound to two thione molecules and two thiocyanato ions through nitrogen atoms in a tetrahedral environment. The structure of 1 is stabilized by intramolecular N–H⋯Cl hydrogen bonds and layers are formed by additional intermolecular N–H⋯S hydrogen bonds. The crystal structure of 2 is characterized by intermolecular N–H⋯S hydrogen bonding and S⋯S interactions. The complex 3 exists in the form of a polymeric chain consisting of [Cd(diaz)2(N3)2] units. In 3 each cadmium atom is octahedrally coordinated by two trans diaz ligands and four doubly-bridging, µ(1,3) azide groups. The coordination chain is stabilized by additional N–H⋯N intrachain hydrogen bonds and, overall a 3D network is formed by interchain N–H⋯N and N–H⋯S hydrogen bonds. The complexes 1–3 were also characterized by IR and NMR spectroscopy, and the spectroscopic data indicated the coordination of ligands to cadmium(II).
AB - Three cadmium(II) complexes of 1,3-diazinane-2-thione (diaz); dichloridotetrakis(1,3-diazinane-2-thione)cadmium(II), [Cd(diaz)4Cl2] (1), bis(thiocyanato-κN)bis(1,3-diazinane-2-thione)cadmium(II), [Cd(diaz)2(NCS)2] (2) and poly[diazidobis(1,3-diazinane-2-thione)cadmium(II)], [Cd(diaz)2(N3)2]n (3) were prepared and their crystal structures were determined by X-ray crystallography. The compounds 1 and 2 exist in the monomeric forms as discrete nonionic molecules. In 1, the cadmium atom is octahedrally coordinated by two trans chloride ions and four diaz ligands, while in 2, it is bound to two thione molecules and two thiocyanato ions through nitrogen atoms in a tetrahedral environment. The structure of 1 is stabilized by intramolecular N–H⋯Cl hydrogen bonds and layers are formed by additional intermolecular N–H⋯S hydrogen bonds. The crystal structure of 2 is characterized by intermolecular N–H⋯S hydrogen bonding and S⋯S interactions. The complex 3 exists in the form of a polymeric chain consisting of [Cd(diaz)2(N3)2] units. In 3 each cadmium atom is octahedrally coordinated by two trans diaz ligands and four doubly-bridging, µ(1,3) azide groups. The coordination chain is stabilized by additional N–H⋯N intrachain hydrogen bonds and, overall a 3D network is formed by interchain N–H⋯N and N–H⋯S hydrogen bonds. The complexes 1–3 were also characterized by IR and NMR spectroscopy, and the spectroscopic data indicated the coordination of ligands to cadmium(II).
KW - 1,3-diazinane-2-thione
KW - Azide
KW - Cadmium
KW - Chloride
KW - Crystal structures
KW - Thiocyanate
UR - http://www.scopus.com/inward/record.url?scp=85029855045&partnerID=8YFLogxK
U2 - 10.1016/j.ica.2017.09.028
DO - 10.1016/j.ica.2017.09.028
M3 - Article
AN - SCOPUS:85029855045
SN - 0020-1693
VL - 469
SP - 312
EP - 317
JO - Inorganica Chimica Acta
JF - Inorganica Chimica Acta
ER -