๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Esr of the C217O, SiC17O, and 29Si2O molecules

โœ Scribed by R.J. Van Zee; R.F. Ferrante; W. Weltner Jr.

Publisher
Elsevier Science
Year
1987
Tongue
English
Weight
509 KB
Volume
139
Category
Article
ISSN
0009-2614

No coin nor oath required. For personal study only.

โœฆ Synopsis

By reaction of carbon atoms or silicon atoms with '70-enriched carbon monoxide, C2 "0 and Sic"0 molecules were prepared and trapped in solid neon matrices at 4 K. Observation of the "0 (I= S/2 ) hypefine splitting in their ESR spectra extend the 13C (I= l/2) and 29Si (I= 112) data formerly found. The SiSiO(X 'Z) molecule is believed to have been detected for the first time. The asymmetric isomer is indicated by the hypefine pattern observed for the %i-substituted molecule. Its zero-field splitting parameter ) D 1 is 1.9 1 cm-' in an argon matrix.

๐Ÿ“œ SIMILAR VOLUMES

17O and 29Si MAS NMR study of ฮฒโ€“C2S hydr
17O and 29Si MAS NMR study of ฮฒโ€“C2S hydration and the structure of calcium-silicate hydrates
โœ Xiandong Cong; R. James Kirkpatrick ๐Ÿ“‚ Article ๐Ÿ“… 1993 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 709 KB

1tO and 29Si MAS and CPMAS NMR spectroscopy has been used to study the mechanism of hydration of/3-C2S and the structure of calcium silicate hydrates (CSH) formed both during hydration of/3-C2S and synthesized separately. /3-C2S was reacted with H~70 at room temperature for up to 100 days. Synthesiz

29Si and 17O NMR investigation of the st
29Si and 17O NMR investigation of the structure of some crystalline calcium silicate hydrates
โœ Xiandong Cong; R.James Kirkpatrick ๐Ÿ“‚ Article ๐Ÿ“… 1996 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 1021 KB

This paper presents the results of a systematic investigation of the structure of 170-enriched, hydrothermally synthesized 1.1-nm tobermorite, 1.4-nm tobermorite, jennite, calciochondrodite, xonotlite, and hillebrandite, using 29Si magic angle spinning (MAS) NMR, 1H-29Si cross-polarization magic ang