ELECTRON SPIN RESONANCE STUDIES OF MATRIX ISOLATED LITHIUM METAL CLUSTERS.
Item
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Title
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ELECTRON SPIN RESONANCE STUDIES OF MATRIX ISOLATED LITHIUM METAL CLUSTERS.
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Identifier
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AAI8614675
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identifier
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8614675
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Creator
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GARLAND, DENISE ANDREA CAVE.
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Date
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1986
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Language
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English
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Publisher
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City University of New York.
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Subject
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Chemistry, Physical
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Abstract
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Matrix isolation ESR results are reported for Li(,3), Li(,7) and LiO(,2). Li(,3) and Li(,7) have isotropic g and a values. The lowest vibronic level of the trimer is not bound within the three equivalent minima of its C(,2v) ground state potential, so that it pseudorotates and appears to have D(,3h) geometry where all three nuclei are equivalent and an electronically degenerate ('2)E' ground state. The hf pattern of Li(,7) indicate that most of the unpaired spin density is on two equivalent nuclei, with a smaller set of five nuclei producing shf transitions. The spectra are consistent with a pentagonal bypyramidal geometry. Trends in the hybridization as a function of cluster size for the alkali metals are discussed.;The Li('+)O(,2)('-) spectra are consistent with a charge transfer pair with C(,2v) geometry and a ('2)A(,2) ground state. Estimates of the crystal field splitting parameter, (delta), agree well with recent ab initio values, and supports an inversion of states model where the ground state of CsO(,2) becomes ('2)B(,1).
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Type
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dissertation
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Source
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PQT Legacy CUNY.xlsx
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degree
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Ph.D.
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Program
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Chemistry
