Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Applied Spectroscopy
  • Vol. 25,
  • Issue 3,
  • pp. 378-379
  • (1971)

Near Infrared Absorption Spectra of Silica: OH Overtones

Not Accessible

Your library or personal account may give you access


Water dissolves in fused silica to give hydroxyl groups (OH) which give rise to a fundamental absorption band at 3700 cm<sup>−1</sup>. The reaction of water with silica may be represented formally as ≡Si-O-Si≡ +H<sub>2</sub>O→2≡Si-OH. Stevenson and Jack found the extinction coefficient of the above band was 77.5±5.1 mole<sup>−1</sup> cm<sup>−1</sup>. Other less intense absorptions have been observed at 4500 and 7300 cm<sup>−1</sup> which are also associated with the presence of hydroxyl groups in fused silica. More recently, Dodd and Fraser have reported the extinction coefficients of the absorption bands at 4500 and 7300 cm<sup>−1</sup>.

PDF Article

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access Optica Member Subscription

Select as filters

Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved