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Communication
Chem. Commun., 2003, 1156 - 1157, DOI: 10.1039/b301690k
Isolation of electronic from geometric contributions to Bergman cyclization of metalloenediynes
Sibaprasad Bhattacharyya, Aurora E. Clark, Maren Pink and Jeffrey M. Zaleski
Conformationally constrained ethylene-diamine metalloenediyne compounds exhibit alkyne termini separations that are constant and independent of metal center geometry. Ancillary chloride ligand electron donation into the Bergman cyclization reaction coordinate, however, dramatically influences the observed temperatures.
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