Topic
Tetrahedral molecular geometry
About: Tetrahedral molecular geometry is a research topic. Over the lifetime, 1795 publications have been published within this topic receiving 30706 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: A series of three new metal (II) complexes of Schiff base were synthesized from the novel ligand derived from Streptomycin and Amoxicillin in stoichiometric ratio.
Abstract: A series of three new metal (II) complexes of Schiff base were synthesized from the novel ligand derived from Streptomycin and Amoxicillin in stoichiometric ratio They were characterized by elemental analysis and spectral techniques like IR, 1H NMR, electronic spectrum and mass spectrum IR spectral data suggested that the tetradentate ligand has coordination to metal ions through azomethine nitrogen, glycosidic oxygen and two amine nitrogens Electronic spectral measurement indicated square planar geometry of Ni and Zn-complexes and tetrahedral geometry of Cu-complex with diamagnetic behavior Molar conductivity measurements revealed non-electrolyte nature of the complexes where metal ions have coordination through doubly negative charged anions of the Schiff base The thermal behavior (TGA/DTA) of the complexes was studied and kinetic parameters were determined by Coats-Redfern method XRPD technique revealed monoclinic crystal systems for Ni- and Zn-complexes and hexagonal crystal system for Cu-complex The possible geometries of the metal complexes with their bond length were optimized by MM2 calculations using CsChem3D Ultra-11 program package software Antibacterial sensitivity of the ligand and its metal complexes were assayed in vitro against four bacterial pathogens viz E coli, B subtilis, S aureus and K pneumonia by Kirby Bauer paper disc diffusion method and showed moderate to better potency
17 citations
TL;DR: In this article, a series of copper(II) complexes of N-substituted o -hydroxyacetophenone imines, HO−C 6 H 4 −C(CH 3 )NR, with R = methyl, n-octyl, benzyl, and 2-phenylethyl, were determined from three-dimensional X-ray diffraction data.
17 citations
TL;DR: In this article, a mixture of syn- and anti-P(NEt2)-bridged [1.1]ferrocenophane was derived from [Fe{(η5-C5H4)PCl( NEt2)] 2 accompanied facile anti-to-syn conversion to give the syn isomer of PCl-bridged syn-4 selectively in 90% yield, and treatment of syn4 with PhLi, Me3SiCH2Li, or p-TolMgBr afforded the corresponding diarylated or dialkylated
17 citations
TL;DR: In this paper, a single crystal has been grown from the amorphous phase of VOCl 3 in the orthorhombic system, space group Pnma, with lattice parameters a = 4.963(1), b = 9.140(4), c = 11.221(5)A at 133 K; the 35 Cl-NQR experiments show two signals at approximately 11.4 MHz of intensity 2:1.
16 citations
TL;DR: In this article, the self-assembly of dipotassium salt of piperazine-1,4-bis(2-ethanesulfonic acid) (K2pesp) with AgNO3 in H2O/DMF gave rise to a novel three-dimensional sulphonate silver(I) complex, [Ag2(μ2-OH2)(pesp)]n (1).
Abstract: Self-assembly of dipotassium salt of piperazine-1,4-bis(2-ethanesulfonic acid) (K2pesp) with AgNO3 in H2O/DMF gave rise to a novel three-dimensional sulphonate silver(I) complex, [Ag2(μ2-OH2)(pesp)]n (1). Each silver(I) ion is coordinated by one nitrogen and two oxygen atoms from three pesp ligands and one oxygen atom from coordinated water molecule in a distorted tetrahedral geometry.
16 citations