Different intermolecular interactions in azido[2-(diphenylphosphino)benzaldehyde semicarbazonato-κ²P,N¹,O]nickel(II)

Abstract

The title compound, [Ni(C(20)H(17)N(3)OP)(N(3))], is the first complex with a semicarbazide-based ligand having a P atom as one of the donors. The influence of the P atom on the deformation of the coordination geometry of the Ni(II) ion is evident but less expressed than in the cases of complexes with analogous seleno- and thiosemicarbazide ligands. The torsion angles involving the two bonds formed by the P atom within the six-membered chelate ring have the largest values [C-P-Ni-N = 24.3 (2) degrees and C-C-P-Ni = -24.2 (4) degrees ], suggesting that the P atom considerably influences the conformation of the ring. Two types of N-H...N hydrogen bond connect the complex units into chains.

Synthesis, crystal structure, magnetic properties and DFT study of dinuclear Ni(II) complex with the condensation product of 2-quinolinecarboxaldehyde and Girard’s T reagent

“…Azide anion is a versatile pseudohalide ligand, which can be coordinated monodentately in mononuclear complexes [1][2][3][4][5] or acts as a bridge between metal centers in di-or polynuclear complexes [6][7][8][9][10][11]. Azido bridged dinuclear Ni(II) complexes have been studied due to their interesting structural and magnetic properties.…”

Molecular Structures and Spin‐States of Pseudohalide Metal Complexes with Hydrazones of Girard's T Reagent

“…The pseudohalide ligands are coordinated as monodentates or act as bridges between metal centers in dinuclear complexes. The spatial rearrangement and sequence of donor atoms in the Girard T reagent hydrazones are similar to corresponding semicarbazones and acylhydrazones, and in many cases analogous coordination modes are observed . In some cases deprotonation of the Girard T reagent hydrazones has a significant influence on the geometry and stoichiometry of the complexes and the spin states of their metal ions, as was observed in the case of isothiocyanato Ni II complexes with the condensation product of 2‐(diphenylphosphanyl)benzaldehyde and the Girard T reagent .…”

Experimental and theoretical investigation of octahedral and square-planar isothiocyanato complexes of Ni(II) with acylhydrazones of 2-(diphenylphosphino)benzaldehyde

“…In square-planar complexes of Ni(II) with 2-(diphenylphosphino)benzaldehyde benzoylhydrazone the ligand is coordinated in a monoanionic form through the PNO donor set while monodentate ligands (CH 3 COO -, Cl -, C≡C-C 6 H 5 -, C≡C-tBu -) occupy the fourth coordination place [2]. Likewise, a square-planar environment around Ni(II) in the complex with the condensation derivative of 2-(diphenylphosphino)benzaldehyde and semicarbazide is formed by the tridentate PNO coordination of the monoanionic form of the ligand and an azide anion [3]. There is only one reported complex of Ni(II) with acylhydrazone of 2-(diphenylphosphino)benzaldehyde that adopts a tetrahedral coordination geometry.…”

“…Acylhydrazones of 2-(diphenylphosphino)benzaldehyde with "soft" phosphorus and structural properties and biological activity [2][3][4][5][6]. In square-planar complexes of Ni(II) with 2-(diphenylphosphino)benzaldehyde benzoylhydrazone the ligand is coordinated in a monoanionic form through the PNO donor set while monodentate ligands (CH 3 COO -, Cl -, C≡C-C 6 H 5 -, C≡C-tBu -) occupy the fourth coordination place [2].…”