Formation of the chelate bonds in the cluster O−2(CO2)n, CO−3(CO2)n, and NO−2(CO2)n
10.1063/1.463560
Crossref journal-article
AIP Publishing
The Journal of Chemical Physics (317)
Abstract

The equilibria of gas-phase clustering reactions of O−2, CO−3, and NO−2 with CO2 were studied with a pulsed electron beam high-pressure mass spectrometer. Thermochemical stabilities of the clusters O−2(CO2)n, CO−3(CO2)n, and NO−2(CO2)n with n=1–8 were determined. For O−2(CO2)n, irregular decreases in the values of −ΔH0n−1,n were observed between n=1 and 2, and n=3 and 4. These gaps indicate that the bond with covalent character is formed through the charge transfer (CT) O−2→CO2 and the CT complex of O2COO− accommodates two CO2 molecules preferably [i.e., O2COO−(CO2)2]. The −ΔH0n−1,n values of both CO−3(CO2)n and NO−2(CO2)n clusters show an irregular decrease between n=4 and 5. This suggests the formation of shells, OCO−2(CO2)4 and NO−2(CO2)4. Ab initio optimized geometries of these clusters are found to be composed of bridge (i.e., chelate) intermolecular bonds.

Bibliography

Hiraoka, K., & Yamabe, S. (1992). Formation of the chelate bonds in the cluster O−2(CO2)n, CO−3(CO2)n, and NO−2(CO2)n. The Journal of Chemical Physics, 97(1), 643–650.

Authors 2
  1. Kenzo Hiraoka (first)
  2. Shinichi Yamabe (additional)
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Dates
Type When
Created 23 years, 1 month ago (July 26, 2002, 8:22 a.m.)
Deposited 1 year, 6 months ago (Feb. 10, 2024, 9:30 a.m.)
Indexed 1 month, 3 weeks ago (July 2, 2025, 12:35 p.m.)
Issued 33 years, 1 month ago (July 1, 1992)
Published 33 years, 1 month ago (July 1, 1992)
Published Print 33 years, 1 month ago (July 1, 1992)
Funders 0

None

@article{Hiraoka_1992, title={Formation of the chelate bonds in the cluster O−2(CO2)n, CO−3(CO2)n, and NO−2(CO2)n}, volume={97}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.463560}, DOI={10.1063/1.463560}, number={1}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Hiraoka, Kenzo and Yamabe, Shinichi}, year={1992}, month=jul, pages={643–650} }