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: By condensation of amantadine and 4-methoxysalicylaldehyde a Schiff base HL was synthesized as mentioned in this paper, and the two complexes were characterized by IR, 1H NMR, elemental analysis, molar conductance, and single-crystal X-ray diffraction.
Abstract: By condensation of amantadine and 4-methoxysalicylaldehyde a new Schiff base HL was synthesized A mixture of HL and zinc(II) chloride in an alcoholic medium leads to [Zn(HL)2Cl2] (1) However, the same reactants gave another different complex (ZnL2) (2) in the presence of NaOH The two complexes were characterized by IR, 1H NMR, elemental analysis, molar conductance, and single-crystal X-ray diffraction X-ray diffraction analysis reveals that complex 1 crystallizes in the triclinic system, Pī space group; each asymmetric unit consists of one zinc(II), two HL, and two chlorides The tetra coordination of central zinc is attained by two chlorides and two oxygens from the Schiff base, forming a distorted tetrahedral geometry Complex 2 crystallizes in the monoclinic system, P21/c space group; each asymmetric unit consists of one zinc(II) and two L The tetra coordination of central zinc is attained by two nitrogens and two oxygens from the Schiff base, forming a distorted tetrahedral geometry
9 citations
TL;DR: The molecular structure of gaseous CsReO 4 has been studied by matrix isolation IR spectroscopy as discussed by the authors, and the 18 O substitution experiments indicate a bidentate structure of C 2v symmetry in which the perrhenate anion is slightly distorted from the tetrahedral geometry.
9 citations
TL;DR: In this article, the magnetic susceptibility of the title compound has been measured in the range 74-300 K and shows linear Curie-Weiss behaviour with C - 14.3, θ = 1.2 K and μeff = 10.77 B.
9 citations
TL;DR: Factors affecting the relative stability of various mesomeric forms are shown to be the proximity to tetrahedral geometry and the compatibility of the dipole form with buckled structures.
Abstract: Acrylonitrile may react with the Si(100) surface in a number of ways. Fifteen different configurations have been identified. This study which complements an earlier study devoted to cycloadditions and bonds involving a single atom deals essentially with configurations involving cumulative double bonds. Factors affecting the relative stability of various mesomeric forms are shown to be the proximity to tetrahedral geometry and the compatibility of the dipole form with buckled structures. Tripods are shown to be a way to accommodate a priori unfavorable structures.
9 citations
TL;DR: In this article, the authors report the results of computer simulations of a model fluid composed of highly idealized tetrahedral molecules, each molecule consists of four hard, smooth, line segments, forming a rigid unit representing the molecular bonds.
Abstract: We report the results of computer simulations of a model fluid composed of highly idealized tetrahedral molecules. Each molecule consists of four hard, smooth, line segments, forming a rigid unit representing the molecular bonds. The simulations show the influence of ‘chattering’ collisions on single-particle time correlation functions, with clear deviations from Enskoglike behaviour even at low densities. Nonetheless, the J-diffusion model describes reorientational correlation functions quite well. It proved impossible to detect non-spherical symmetry components of these functions at the densities studied.
9 citations