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.
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TL;DR: In this article, Ni(O) acrylonitrile complexes with a bidentate N-donor ligand, [Ni(biL)(AN)2] (biL=4,4′-dimethyl-2,2′-bipyridine (Me2bpy); 1, 2, 2′-dipyridylamine (dpa); 2, pyridylbenzimidazole (pbi); 3, AN=acryloniticle), have been prepared and characterized.
12 citations
TL;DR: This study confirms the deviation of τ angles in both the peptide and protein structures but similar forces do not influence them, whereas as expected the conformational properties influence the protein structures.
12 citations
TL;DR: The reaction of iminotriaryl-λ 5 -bismuthanes with dialkyl acetylenedicarboxylates has been found to afford highly stabilized bismuthonium ylides in 50-92% yield as mentioned in this paper.
12 citations
TL;DR: Two new Cd(II) complexes of general formula [Cd(N3)2]CdBr4 were made available and the structure of [Ccd(dien)2)Cd Br4 was confirmed by X-ray diffraction, and high stability of the synthesized complexes confirmed by TG.
Abstract: The coordination chemistry of cadmium(II) with diamine ligands is of particular interest. The most common structure around cadmium(II) center in their complexes is tetrahedral, that is due the octet rule obeyed. Nevertheless, five and six-coordinated complexes are also well known. Now a day, many cadmium(II) complexes with chelate ligands were synthesized for their structural or applications properties. Antibacterial activities and DNA binding affinity of this class of cadmium complexes have attracted considerable interest. Cadmium(II) complexes in dicationic form with general formula [Cd(dien)2]CdBr4 complex 1 (dien = diethylenetriamine) and [Cd(dipn)2]CdBr4 complex 2 (dipn = diproylenetriamine) were prepared and elucidated there chemical structures by elemental analysis, UV–Vis, IR, TG and NMR, additionally complex 1 structure was solved by X-ray diffraction study. The Cd(II) cation is located in a slightly distorted octahedral geometry while Cd(IV) anion is in tetrahedral geometry. High stability of the synthesized complexes confirmed by TG. Thermolysis of complex 1 revealed the formation of pure cubic nanoparticles CdO which was deduced by spectral analysis. The average size of CdO nanoparticles was found to be ~60 nm. Two new Cd(II) complexes of general formula [Cd(N3)2]CdBr4 were made available. The structure of [Cd(dien)2]CdBr4 was confirmed by X-ray diffraction. Thermal, electro and spectral analysis were also investigated in this study. The direct thermolysis of such complexes formed a cubic CdO regular spherical nanoparticle with the ~60 nm average particle size.
Graphical abstract
ORTEP for the complex 1
12 citations
TL;DR: MenOCOCH 2 CH 2 SnCl n Ph 3− n ( n ǫ = 0, 1, 2, 3 ; 3, 4 ) and [(−)-MenOC OCH 2CH 2 Sn(OH)Cl 2 ] 2 ·Â2(C 2 H 5 ) 2 O ( 5  ·  2(C2 H 5 2 O) were synthesized and characterized by means of elemental analysis, IR and NMR (1 H, 13 C and 119 Sn) spectra as discussed by the authors.
12 citations