Abstract
Abstract Reaction of Ph3P[dbnd]NSiMe3 with NH4ReO4 produced the ion pair Ph3P[dbnd]NH2 +ReO4- which was characterized by spectroscopic data and X-ray crystallography. The thermolysis of this ion pair gave the neutral Re(VII) complex: Ph3P[dbnd]N-ReO3 in good yields. The reactions of 99mTcO4- or 188ReO4- with Ph3P[dbnd]N-SiMe3 also produced the metallic radioisotope analogues of the ion pair: Ph3P[dbnd]NH2+MO4- (M = 99mTc or 188Re) which on heating produce the neutral species Ph3P[dbnd]N-MO3 (M = 99mTc or 188Re). The implications of such small molecule 99mTc or 188Re complexes for the development of a new genre of radiopharmaceuticals will be discussed.
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