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AM1 treatment of certain thyroid hormones
Date
2002-07-26
Author
Türker, Burhan Lemi
Metadata
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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Some thyroid hormones, T-4, T-3 and reverse T-3 are considered for Austin model 1 restricted Hartree-Fock type semi-empirical molecular orbital calculations. The zwitterionic form in every case was found to be less stable and less exothermic as compared to the nonionic form of them.
Subject Keywords
Thyroid hormones
,
Thyroxine
,
T-4
,
T-3
,
rT(3)
URI
https://hdl.handle.net/11511/62283
Journal
JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM
DOI
https://doi.org/10.1016/s0166-1280(02)00148-3
Collections
Department of Chemistry, Article
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Semi-empirical molecular orbital treatment of monogermacyclacenes of two different types has been performed at the level of AM1 type calculations. The effect of germanium substitution is found to be moderately destabilizing but it becomes less pronounced in larger systems. The heats of Formation values of these classes of structures are endothermic and exhibit cryptoannulenic effect. Also some physicochemical properties of monogermacyclacenes have been estimated.
AM1 treatment of monosilacyclacenes
Türker, Burhan Lemi (Informa UK Limited, 1997-01-01)
Semi-empirical molecular orbital calculations at the level of AM1 type have been performed on Huckel type monosilacyclacenes having arenoid rings (R) of 2-7. Silicon atom at the peri and fusion points of arenoid rings were separately considered for each case of R.
AM1 treatment of phenolsulfonephthalein
Türker, Burhan Lemi (2000-01-01)
Different forms of phenolsulfonephthalein (phenol red) were subjected to semiempirical molecular orbital treatment at the level of AM1-RHF type calculations. All the forms considered were found to be stable and exogenic. However. most of the molecular orbital characteristics of these structures are highly different from each other.
AM1 treatment of silacyclacenes
Türker, Burhan Lemi (Informa UK Limited, 1997-01-01)
Semi-empirical molecular orbital treatment at the level of AM1 type has been performed on Huckel type silacyclacenes having arenoid rings (R) of 2-9. The first and second type cryptoannulenic effects are defined.
AM1 treatment of Huckel type cyclacenes
Türker, Burhan Lemi (1997-05-30)
Semiempirical molecular orbital calculations at the level of AM1 type were carried out on Huckel type cyclacenes having arenoid rings (R) of 2-10. It has been found that the cryptoannulenic effect highly influences the molecular orbital characteristics of these systems. (C) 1997 Elsevier Science B.V.
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B. L. Türker, “AM1 treatment of certain thyroid hormones,”
JOURNAL OF MOLECULAR STRUCTURE-THEOCHEM
, pp. 113–120, 2002, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/62283.