Ah initlo calculations are reported For the systems .ti(H20)~' and Cu(H~0)z' with n up to 7. Tine cdcul2ted binding ene&s increase monotically up 10 ,I = 6, v&h equal binding energ& for IL = 6 2nd 7 foi Z& Al"'cation. AR estimate of the enihalpy of hydration of M3' \_ IS given, based on model calcuh
Structures and stabilities of LiNO2 and NaNO2 ion pairs: An ab initio SCF study
β Scribed by Fabio Ramondo
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 397 KB
- Volume
- 156
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
RHF-SCF calculations with large basis sets, including d-functions, were carried out to investigate the interaction of lithium and sodium atoms with NO2 and to determine the molecular geometries of the charge-transfer complexes, LiNOl and NaNO,. Calculations predict a complex topology consisting of bidentate and monodentate structures. LiNO, and NaN02 ion pairs have two stable configurations of C2, and C. symmetry. The Czv ring complex is the most stable form. Two first-order saddle points on the energy surfaces of the complexes were also found corresponding to a C. structure and a monodentate Czv form. Vibrational frequencies of the stable complexes were determined from SCF calculations with the 3-ZlG* basis set.
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Ab initio SCF calculations at the 3-2 I G\* and 6-3 1 G\* HF-SCF level were performed on LiCIOs and NaClOs. Tridentate, bidentate and monodentate coordination models were examined and the bidentate and tridentate structures were characterized as the two lowest-energy minima on the corresponding pote
Ab-initio calculations using three large gaussian basis sets arc reported for the unstable molecule SF2. The cffcct on tbc energy and computed geometry of polarhation functions and their expcrnents is examined, and a variety of one4cciron propertics computed.
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