η6-Hydroquinone and catechol complexes of manganese tricarbonyl. 0olecular structure of [(η6-hydroquinone) Mn(CO)3]2SiF6
作者:Shouheng Sun、Gene B. Carpenter、D.A. Sweigart
DOI:10.1016/0022-328x(95)05880-x
日期:1996.4
The reaction of (η6-acenaphthene)Mn(CO)3+ with hydroquinone and catechol affords the stable π-bonded complexes (η6-hydroquinone)Mn(CO)3+ (1) and (η6-catechol)Mn(CO)3+ (2). The X-ray structure of [1]2SiF6 shows an approximately planar arene ligand with the -OH substituents strongly hydrogen bonded to fluorine atoms in the SiF62− anion. Deprotonation of 1 and 2 by NEt3 yields the corresponding π-bonded
The η<sup>4</sup>-<i>o</i>-Benzoquinone Manganese Tricarbonyl Anion (<i>o</i>-QMTC) as an Organometalloligand in the Formation of M(<i>o</i>-QMTC)<sub>2</sub>(L−L) Complexes (M = Mn, Co, Cd; L−L = bipy, phen): Generation of Neutral 2-D Networks Containing Two Types of π−π Stacking
作者:Moonhyun Oh、Gene B. Carpenter、D. A. Sweigart
DOI:10.1021/om030009k
日期:2003.3.1
The complex (eta(6)-catechol)Mn(CO)(3)(+) is readily deprotonated to (eta(4)-o-benzoquinone)Mn(CO)(3)(-) (o-QMTC), which functions as an organometalloligand toward divalent metal ions by a-bonding through the quinone oxygen atoms. The ligand o-QMTC, together with 2,2'-bipyridine or 1,10-phenanthroline (L-L), was found to produce the stable complexes M(o-QMTC)(2)(L-L) (M = Mn, Co, Cd). Crystal structures of Mn(o-QMTC)(2)(bipy), Co(o-QMTC)(2)(bipy), and Cd(o-QMTC)(2)(phen) revealed in each case a two-dimensional supramolecular architecture consisting of pi-pi stacking and interdigitation of the bipy or phen ligands, as well as a pairwise pi-pi stacking of one of the two benzoquinone rings in each monomeric unit to generate dimeric units.