Mixed-Ligand Metal Succinate Complexes with 1,10-Phenanthroline and Ethylenediamine: Synthesis, Characterization, Spectroscopic and Thermal Studies. Crystal Structure of Succinatocobalt(II) Complex with Phenanthroline

Abstract

The novel mixed-ligand metal succinate (suc) complexes with 1,10-phenanthroline (phen) and ethylenediamine (en) have been synthesized and characterized by elemental analyses, magnetic moments, UV-VIS and IR spectra. Thermal reactivity of the complexes was studied in air using DTA and TG, and decomposition of the complexes resulted in the formation of corresponding metal oxides. The crystal structure of the [Co(suc)(H 2 O)(phen) 2 ] Á 1.5H 2 O Á C 4 H 10 O complex was determined by x-ray diffraction. The Co(II) complex crystallizes as a monobutanol solvate. In the complex, the cobalt ion lies on an inversion center and displays a distorted octahedral coordination with one aqua, one suc and two phen ligands. The suc ligand acts as a monodentate ligand through one of the negatively charged O atoms, while phen behaves as N-donor bidentate ligand. The crystal also contains disordered lattice water molecules and the structure is stabilized by extensive hydrogen bonding to form a three-dimensional infinite network.

Nickel oxide interlayer films from nickel formate–ethylenediamine precursor: influence of annealing on thin film properties and photovoltaic device performance

“…Mass loss is due to a combination of evaporation of residual solvent (likely ethylene glycol, boiling point 197 C), loss of the ethylenediamine ligands, which have been shown to leave stepwise, [46][47][48] and the decomposition/oxidation of the Ni(O 2 CH) 2 complex (above 225 C) to NiO x . 34,36,38 In comparison, studies with [Ni(saccharinate) 2 (en) 2 ]en 47 [Ni(en) 3 ]oxalate, 48 Ni(succinate)(en), 49 and Ni(en) 3 SO 4 (ref. 50) reported temperatures for the nal stage decomposition/oxidation to NiO of 300 C, 325 C, 410 C, and 466 C respectively.…”

Novel Coordination Polymers of Metal(II) Succinates with 4‐Aminopyridine: Synthesis, Spectroscopic, Thermal, and Fluorescent Properties

“…[6,7] Although [Co(suc)(H 2 O)(phen) 2 ] · 1.5H 2 O · C 4 H 10 O, in which suc behaves as a monodentate ligand, is not a coordination polymer, it crystallizes as a monobutanol solvate. The presence of the n ‐butanol molecules indicates that the structure of the compound has solvent‐accessible voids 7…”

Crystal Structure and Characterization of Organic−Inorganic Hybridized Molecules with Molecular Zipper Structures and Two-Dimensional Grid Networks

“…9 By introduction of some organic chelate ligands, several lower dimensional structures have also been found. 10,11 We have recently prepared a new 2-D 4,8 2 12 Here, we describe the crystal structures of molecular zippers Co(dmbpy…”

“…Noteworthy examples of these polymers are the interpenetrating (10,3) 3-D net [Na 3 Cd 5 (C 4 H 4 O 4 ) 6 X] (X = Cl, Br), [Ni 7 (C 4 H 4 O 4 ) 4 (OH) 6 (H 2 O) 3 ]·7H 2 O, which has remarkable void volumes and can reversibly re-absorb water molecules, Ni 7 (C 4 H 4 O 4 ) 6 (OH) 2 (H 2 O) 2 ]·2H 2 O, the 3-D succinato-pillared coordination polymers Mn 5 (OH) 2 (C 4 H 4 O 4 ) 4 and Cd 3 (OH) 2 (C 4 H 4 O 4 ) 2 , the 3-D rare earth polymer [Pr(H 2 O)] 2 [C 4 H 4 O 4 ] 3 ·H 2 O, and an effective Lewis acid catalyst Sc 2 (C 4 H 4 O 4 ) 2.5 (OH) . By introduction of some organic chelate ligands, several lower dimensional structures have also been found. , We have recently prepared a new 2-D 4,8 2 network Cu 4 (pmo) 4 (C 4 H 4 O 4 ) 2 ·H 2 O (Hpmo = 2-pyridinemethanol) . Here, we describe the crystal structures of molecular zippers Co(dmbpy)(H 2 O) 2 (C 4 H 4 O 4 ) (dmbpy = 4,4‘-dimethyl-2,2‘-bipyridine, C 4 H 4 O 4 = succinate; 1 ) and two isomorphous 2-D grid coordination polymers M(dpdo)(H 2 O) 2 (C 4 H 4 O 4 ) (M = Zn ( 2 ) or Mn ( 3 ), dpdo = 4,4‘-dipyridyl N , N ‘-dioxide).…”