Results 261 to 270 of about 65,167,055 (305)

Stereospecific incorporation of oxygen-18 into manganese and rhenium pentacarbonyl derivatives via exchange reactions with water (oxygen-18)

Journal of the American Chemical Society, 1976
The pentacarbonyl derivatives, M(CO5)6+, (where M = Mn, Re and L = PMe2Ph, CH3CN, C5H5N) underwent oxygen 18 enrichment by reaction with H$sub 21$$sub 8$O in acetonitrile solvent. Ir spectrographic monitoring indicated preferential oxygen exchange at the equatorial CO ligand rather than at the axial ligand.
Donald J. Darensbourg, D. Drew
openaire   +1 more source

The infrared spectra of oxygen-18 labelled chars

Carbon, 1967
As a contribution to the study of the origin of the 1600 cm−1 band in the infrared (i.r.) spectra of coals and chars the i.r. spectra of the chars from oxygen-18 labelled linoleic acid, benzoic acid, sodium benzoate, and phenol have been investigated.
R.A. Friedel, R.A. Durie, Y. Shewchyk
openaire   +1 more source

A method for determining the oxygen-18 content of orthophosphate or water

Analytical Biochemistry, 1961
Abstract A method for determining the oxygen-18 content of orthophosphate or water is described. The method is based on the use of a high voltage discharge to bring about the rapid equilibration of oxygen-18 from water with carbon dioxide. Samples of KH2PO4 as low as 2 mg are readily analyzed.
openaire   +2 more sources

Oxygen-18 studies with citrate synthase

Biochimica et Biophysica Acta (BBA) - General Subjects, 1967
C H, Suelter, S, Arrington
openaire   +2 more sources

A study of photophosphorylation with oxygen-18

Biochemical and Biophysical Research Communications, 1960
Mordhay Avron, Nathan Sharon
openaire   +1 more source

Oxygen-18 Studies of Recent Planktonic Foraminifera

Science, 1971
Bé, A. W. H., Donk, Jan van, Hecht, Alan D., Savin, S. M.   +3 more
openaire   +3 more sources

Oxygen-18 formaldehyde insertion in the ozonolysis of ethylene and the microwave spectrum of oxygen-18 ethylene ozonide

Journal of the American Chemical Society, 1972
Chales W. Gillies, Robert L. Kuczkowski
openaire   +1 more source

When Anaerobes Encounter Oxygen: Mechanisms of Oxygen Toxicity, Tolerance and Defence

Nature Reviews Microbiology, 2021
James A Imlay, Zheng Lu
exaly  

Oxygen-18 studies on the conversion of proline to hydroxyproline

Biochemical and Biophysical Research Communications, 1962
D, PROCKOP, A, KAPLAN, S, UDENFRIEND
openaire   +2 more sources

Oxygen K-Edge X-Ray Absorption Spectra

Chemical Reviews, 2020
Frank M F de Groot, Myrtille Hunault, Federica Frati   +2 more
exaly