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Oxovanadium(IV) Complexes of Substituted N-(2-Thiophenyl)Salicylideneimine

Description: In an effort to study the spectral, magnetic, and stereochemical properties of vanadyl complexes, both a new series of vanadyl complexes derived from type (VII) ligands with subnormal magnetic moment and from type (VIII) ligands with normal magnetic moment are synthesized and characterized.
Date: June 1970
Creator: Lee, Cheng Chang
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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ESR Studies of Group IV Substituted Anilines

Description: The purpose of the investigation described herein was to investigate the degree of delocalization of the unpaired electron in ion radicals formed in the oxidation process of compounds with aromatic rings connected by means of various groups and atoms not entering the ring; then, to establish the relationship of coupling constants in radical cations with substituent σ values. The parent cation radical, in which the co-planar ion was derived from N,N-dimethylaniline, was selected in order to maxi… more
Date: June 1970
Creator: Wong, Pui-Suen
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

High Temperature Enthalpies of the Lead Halides: Enthalpies and Entropies of Fusion

Description: The objectives of this investigation were: 1. To establish calorimetrically the transition temperature for the orthorhombic to cubic transition exhibited by PbF₂ and to determine the enthalpy of this transition. 2. To determine if the solid-solid phase transitions claimed in the literature for PbCl₂, PbF₂, PbBr₂, and PbI₂ were of thermodynamic importance, and if so, to determine the enthalpies of transition. 3. To determine if the discontinuous thermal expansions reported by Hsu for the lead ha… more
Date: June 1970
Creator: Linsey, Clarence W.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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