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Reactions involving CO2, H2O, and NH3: The formation of (i) carbamic acid, (ii) urea, and (iii) carbonic acid

✍ Scribed by A. D. Buckingham; N. C. Handy; J. E. Rice; K. Somasundram; C. Dijkgraaf

Publisher
John Wiley and Sons
Year
1986
Tongue
English
Weight
647 KB
Volume
7
Category
Article
ISSN
0192-8651

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✦ Synopsis

A complete understanding of the synthesis of urea, (NH2),C0, from NH3, C02, and H20 remains an unsolved problem. It is considered that the formation of the intermediate ammonium carbamate (or the equivalent carbamic acid) takes place through the interaction of neutral species, and that this part of the synthesis is open to ab initio computations. Such calculations are reported on the formation of carbamic acid from NH3, C02, and HzO. We have also investigated the formation of carbonic acid from C02 and H20 showing that the six-membered ring transition state is non-planar, in contradiction with earlier reported calculations.

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