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Syntheses, structures, and spectra of dinuclear, metal-metal bonded compounds of diplatinum(III) and dirhodium(II)
(1984)
Metal atom dimers containing the (sigma)('2)(pi)('4)(delta)('2)(delta)*('2)(pi)*('4 )configuration (d('7)-d('7)) have a net single bond between them and this bonding is exemplified in the real systems Rh(,2)('4+), Ir(,2)('4+), ...
Asymmetric synthesis of [alpha]-amino acids and [alpha]-amino aldehydes via electrophilic substitution of chiral lithiocarbanions
(1982)
The asymmetric syntheses of N-protected-(alpha)-amino acid derivatives are reported. Deprotonation of N-benzoylglycine (-)-menthol ester (1) with lithium diisopropylamide (LDA) affords the stable dilithio derivative (9). ...
Ab initio calculations on electron deficient molecules : boron hydrides and transition metal carbenes
(1983)
The effect of electron correlation on the electron distribution and bonding of diborane is examined in several basis sets. The generalized molecular orbital method is used to define optimized orbitals for the configuration ...
A computerized infrared spectroscopic study of surface reactions on selected lanthanide oxides
(1982)
The natures of adsorption sites on La(,2)O(,3), Nd(,2)O(,3), and selected praseodymium oxides were investigated by examining surface reactions of probe molecules using computerized transmission infrared (IR) spectroscopy ...
Pathways for intramolecular carbonyl exchange in some metal carbonyl complexes
(1978)
The intramolecular carbonyl exchange processes which occur in metal carbonyl complexes of the cyclic polyenes, azulene, guaiazulene, and 7-H-indene have been examined by carbon-13 NMR spectroscopy. These polyenes form ...
A comparison of feedback systems affecting achievement in mastery learning
(1976)
The purpose of this investigation was to determine the influence of different remediation strategies on student retention of cognitive achievement. Fifty-three students were randomly assigned to three treatment groups ...
Protein crystallography : new approaches to X-ray data collection, direct space refinement and model building
(1977)
This crystallographic study was designed to develop and test efficient techniques of X-ray data collection, phase extension and refinement, and model building capable of giving a reliable description of macromolecules in ...
Cosmic ray produced noble gases in mesosiderite meteorites
(1977)
Mass spectrometric analyses of the noble gas isotopes were performed on the mesosiderites, Clover Springs, Crab Orchard, Patwar, and Hainholtz with comparative analyses also conducted on the achondrites, Binda and Pavlovka. ...
The technical and safety laboratory teaching competencies needed to teach high school Chemistry I
(1990)
In 1984, the Texas State Board of Education enacted a series of curricular changes in public education. One of the changes mandated that 40% of secondary science class time be spent on "hands- on" activities. The purpose ...