The relative energies of 18 isomers of C6oH 6 have been determined through geometry-optimized ab initio calculations. HF/6-31G\* computations on the two lowest energy structures determined at the HF/3-21G level indicate that 1,2,4,11,15,30-C6oH 6 (18, with a C6oBr6-1ike structure) lies only 0.4 kcal
Ab initio study of cyanoguanidine isomers
β Scribed by A.V. Arbuznikov; L.A. Sheludyakova; E.B. Burgina
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 389 KB
- Volume
- 240
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
An ab initio quantum chemical study of the geometric structure and stability of cyanoguanidine isomers was carried out at the Hartree-Fock and MΒ’ller-Plesset levels of theory. Two stable separable isomers ('cyanoimine' and 'cyanoamine') are found. This gives evidence in favour of the vibrational spectroscopy data showing the existence of both isomers.
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Geometry optimizations are performed for three isomers of C2o, namely the ring, bowl (corannulene-like), and cage (fullerene-like) configurations, using both the local density functional approximation (LDA), and gradient-corrected density functional theory (BLYP). The BLYP results confirm the previo
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