Jere, GV and Patel, CC (1962) Infra-red absorption bands of co-ordinated water in titanium complexes. In: Nature, 194 (4827). pp. 470-471.
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ORANGE red and amorphous peroxy-titanium complexes of oxalic, malonic and maleic acids1-3, when vacuum-dried, have co-ordinated water molecules firmly bonded to the central titanium atom as shown in formula (I). The peroxy-oxygen from these compounds is slowly lost even at room temperature because of the strained peroxy-group3,4. The compounds, when kept at 95°-100°C. for about three days, give deperoxygenated compounds of the type (II). However, a sample of peroxy-titanium oxalate sealed in a glass tube lost all its peroxy-oxygen in about four years and gave a white crystalline basic oxalate (II). The amorphous nature of the compounds may be due to random hydrogen bonding in the complexes. The crystallinity observed in one of the deperoxygenated titanyl oxalates may be due to the rearrangement of the molecules during ageing for more than four years. The infra-red absorption of these compounds was studied to find out the effect of co-ordination and hydrogen bonding on the infra-red bands of the free water.
| Item Type: | Journal Article |
|---|---|
| Publication: | Nature |
| Publisher: | Nature Publishing Group |
| Additional Information: | Copyright of this article belongs to Nature Publishing Group. |
| Department/Centre: | Division of Chemical Sciences > Inorganic & Physical Chemistry |
| Date Deposited: | 03 Jun 2010 04:23 |
| Last Modified: | 03 Jun 2010 04:23 |
| URI: | http://eprints.iisc.ac.in/id/eprint/28264 |
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