The prediction of the structure of technician (V) complexes using density-functional techniques

Electronic structure calculations using the local-density functional method were shown to accurately reproduce the geometry of five oxo-Tc (V)-based radiopharmaceuticals containing a variety of donor ligands. Calculations were performed using the DGauss program on a Cray C90 supercomputer, requiring...

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Bibliographic Details
Published in:Nuclear medicine and biology 1997-07, Vol.24 (5), p.395-398
Main Authors: Boudreau, R J, Mertz, J E
Format: Article
Language:English
Subjects:
Organotechnetium Compounds - chemistry
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Summary:Electronic structure calculations using the local-density functional method were shown to accurately reproduce the geometry of five oxo-Tc (V)-based radiopharmaceuticals containing a variety of donor ligands. Calculations were performed using the DGauss program on a Cray C90 supercomputer, requiring approximately 40 CPU h for each molecule. The predicted bond lengths were within +/- 0.04 A of the crystallographic coordinates, and bond angles within +/- 4 degrees. Root mean square (RMS) deviations between the predicted and crystallographic coordinates were less than 0.06, and visual inspection demonstrated nearly perfectly superimpossible structures.
ISSN:0969-8051