In:
Applied Spectroscopy, SAGE Publications, Vol. 40, No. 6 ( 1986-08), p. 871-877
Abstract:
Vibrational spectroscopic methods were used to study the Si-O bond character in silicates with different complex anions and crystal structures. The following calcium silicates were examined: Ca,(SiO 5 ), γ-Ca 2 (SiO 4 ), β-Ca 2 (SiO 4 ), Ca 3 (Si 2 O 7 ), Ca(SiO 3 ), and Ca(Si 3 O 3 ). The band assignments in IR and Raman spectra of these compounds have been deduced mainly from 28 Si −30 Si and 40 Ca −44 Ca isotopic shifts. The GF matrix method and molecular approximation for force constant calculations in silicate anions were used. The Si-O bond parameters (bond order, charge distribution, and bond ionicity, etc.) were obtained from calculated force constants. The nature of Si-O bonds with respect to complex anion and crystal structure will be discussed.
Type of Medium:
Online Resource
ISSN:
0003-7028
,
1943-3530
DOI:
10.1366/0003702864508322
Language:
English
Publisher:
SAGE Publications
Publication Date:
1986
detail.hit.zdb_id:
1474251-2
SSG:
11
