Investigation of a mercury(II) carbene complex: bis(1,3-dimethylimidazol-2-ylidene) mercury chloride
Corresponding Author
Anthony J. Arduengo III
DuPont Science and Engineering Laboratory, Experimental Station, Wilmington, DE 19880-0328
DuPont Science and Engineering Laboratory, Experimental Station, Wilmington, DE 19880-0328Search for more papers by this authorRichard L. Harlow
DuPont Science and Engineering Laboratory, Experimental Station, Wilmington, DE 19880-0328
Search for more papers by this authorWilliam J. Marshall
DuPont Science and Engineering Laboratory, Experimental Station, Wilmington, DE 19880-0328
Search for more papers by this authorT. K. Prakasha
DuPont Science and Engineering Laboratory, Experimental Station, Wilmington, DE 19880-0328
Search for more papers by this authorCorresponding Author
Anthony J. Arduengo III
DuPont Science and Engineering Laboratory, Experimental Station, Wilmington, DE 19880-0328
DuPont Science and Engineering Laboratory, Experimental Station, Wilmington, DE 19880-0328Search for more papers by this authorRichard L. Harlow
DuPont Science and Engineering Laboratory, Experimental Station, Wilmington, DE 19880-0328
Search for more papers by this authorWilliam J. Marshall
DuPont Science and Engineering Laboratory, Experimental Station, Wilmington, DE 19880-0328
Search for more papers by this authorT. K. Prakasha
DuPont Science and Engineering Laboratory, Experimental Station, Wilmington, DE 19880-0328
Search for more papers by this authorAbstract
The reaction of 1,3-dimethylimidazolium chloride with Hg(O2CCH3)2 afforded a bis(carbene)mercury(II) complex (2), which is characterized by multinuclear NMR spectroscopy (1H, 13C, 15N, and 199Hg) and by single-crystal X-ray analysis. As a consequence of chloride-ion interaction with the mercury center, the C2-Hg-C2 angle in 2 is reduced to 161.4 (3)° compared to its near-linear value in complex 4 that contains perchlorate counterions. The C2 resonance in the mercury complex 2 moves upfield by 36.96 ppm relative to the parent carbene (2), with a large 1JHgC = 2741.18 Hz. © 1996 John Wiley & Sons, Inc.
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