摘要在含有锌汞齐的丙酮-水混合物(6:1)中还原无色[LRe VII O 3] Br可获得绿色,对空气敏感的[LRe VO 2 Br],形成紫色络合物[LReO(μ-O) 2 ReOBr 2]在水溶液中(L = 1,4,7-三氮杂环壬烷; C 6 H 15 N 3)。通过类似地还原[LReO 3] ReO 4,得到紫色中性络合物[LReO(μ-O)2 ReO(ReO 4)2]。[LReO 3] +在碱性溶液中(p K a = 10.3 + 0.2,25℃)去质子化,并分离为黄色固体的[(C 6 H 14 N 3)ReO 3]。后者的酰胺rh(VII)化合物在二甲基甲酰胺中与RX(R = CH 3,苄基; X = Cl)反应,得到环状胺N,N',N''-三烷基化的[L' ReO 3] X。单体rh(V)络合物[LReOX 2] X(X = Cl,Br,I)是由[n-丁基4 N] ReOX 4与L在乙腈中的反应获得的。红外线
摘要在含有锌汞齐的丙酮-水混合物(6:1)中还原无色[LRe VII O 3] Br可获得绿色,对空气敏感的[LRe VO 2 Br],形成紫色络合物[LReO(μ-O) 2 ReOBr 2]在水溶液中(L = 1,4,7-三氮杂环壬烷; C 6 H 15 N 3)。通过类似地还原[LReO 3] ReO 4,得到紫色中性络合物[LReO(μ-O)2 ReO(ReO 4)2]。[LReO 3] +在碱性溶液中(p K a = 10.3 + 0.2,25℃)去质子化,并分离为黄色固体的[(C 6 H 14 N 3)ReO 3]。后者的酰胺rh(VII)化合物在二甲基甲酰胺中与RX(R = CH 3,苄基; X = Cl)反应,得到环状胺N,N',N''-三烷基化的[L' ReO 3] X。单体rh(V)络合物[LReOX 2] X(X = Cl,Br,I)是由[n-丁基4 N] ReOX 4与L在乙腈中的反应获得的。红外线
Triazacyclohexane (tach) Complexes of High-Valent Rhenium: Syntheses of [(R<sub>3</sub>tach)ReO<sub>3</sub>]<sup>+</sup> (R = −CH<sub>3</sub>, −CH<sub>2</sub>C<sub>6</sub>H<sub>5</sub>) and Its Substitution Reactions
作者:Henrik Braband、Sebastian Imstepf、Michael Felber、Bernhard Spingler、Roger Alberto
DOI:10.1021/ic902114p
日期:2010.2.15
N-Alkylated derivatives of 1,3,5-triazacyclohexane (tach) are versatile, facially coordinating ligands. We present the syntheses and full characterization of two new complexes of the [(R(3)tach)ReO3](+) type. In these complexes, the tach ligand is readily substituted by bi- and tridentate ligands; hence, they can be considered as sources of the [ReO3](+) motif for Re-VII complexes.