2026-10-10T01:39:35Z https://api.figshare.com/v2/oai

oai:figshare.com:article/34024807 2026-09-29T15:36:23Z category_1 category_915 category_7 category_21 category_873 category_45 category_734 portal_63 item_type_3 month_year_09_2026

Observation of Bridging Chlorine in Vitreous SiO₂ Lindsay M. Harrison (23593058) Adam R. Sarafian (3771733) Randall E. Youngman (1269747) Craig D. Nie (23593067) Matthew E. McKenzie (16503095) Alisha N. Clark (23593061) Biophysics Physical Sciences not elsewhere classified Medicine Biotechnology Chemical Sciences not elsewhere classified Sociology Biological Sciences not elsewhere classified reducing network connectivity unlike analogous f 2 </ sub network structure viscosity behaviors thus may silica tetrahedra raman data preserving rather physical properties optical applications indicate bridging halogen leads elastic stiffness doped silicas desirable attribute bridging chlorine amorphous silica The short-range to mid-range structure of inorganic glasses profoundly impacts their physical properties. In this work, we have used multiple spectroscopic methods to examine the change in the network structure of amorphous silica with addition of Cl. Unlike analogous F-doped silicas, where the bonding of halogen leads to terminal Si–F groups, NMR and Raman data for Cl-doped v-SiO₂ indicate bridging between silica tetrahedra, preserving rather than reducing network connectivity and contributing to their elastic stiffness and viscosity behaviors. These bridging Cl atoms make v-SiO₂ stiffer while having the same effect on density behavior per mol % dopant as F in v-SiO₂ and thus may be a desirable attribute in tailoring v-SiO₂ for optical applications. 2026-09-29T00:00:00Z Dataset Dataset 10.1021/acs.jpcb.6c02141.s005 https://figshare.com/articles/dataset/Observation_of_Bridging_Chlorine_in_Vitreous_SiO_sub_2_sub_/34024807 CC BY-NC 4.0