Crystal structure of aquadioxido(2-{[(2-oxidoethyl)imino]methyl}phenolato-κ³O,N,O′)molybdenum(VI)

Abstract

The mononuclear title complex, [Mo(C9H9NO2)O2(H2O)], contains an Mo(VI) atom in a distorted octa­hedral coordination sphere defined by an Mo=O and an Mo—(OH2) bond to the axial ligands and two Mo—O bonds to phenolate and alcoholate O atoms, another Mo=O bond and one Mo—N bond to the imino N atom in the equatorial plane. The five-membered metalla-ring shows an envelope conformation. In the crystal, individual mol­ecules are connected into a layered arrangement parallel to (100) by means of O—H⋯O hydrogen bonds involving the water mol­ecule as a donor group and the O atoms of neighbouring complexes as acceptor atoms. These inter­actions lead to the formation of a three-dimensional network.

Monomeric and Dimeric Oxidomolybdenum(V and VI) Complexes, Cytotoxicity, and DNA Interaction Studies: Molybdenum Assisted C═N Bond Cleavage of Salophen Ligands

“…Distortion of the square plane is observed from the difference in the Mo–O(1)/O(2), Mo–N(1)/N(3), Mo–N(2), and Mo–N(4) bond lengths as well as the difference in the bond angles at the Mo atom [74.6(7) to 109.4(2)°]. The lengths of the MoO, Mo–O, Mo–N imino , and Mo–N imido bonds are usual. ,,− , Both Mo acceptor centers are displaced from the average equatorial plane described by O(1)/O(2)–N(1)/N(3)–N(2)–N(4) toward the axial oxido oxygen atom O(3)/O(4) by about 0.63(1) Å, the distance of O(3)/O(4) from the same plane being about 2.3 Å. In the aldehyde oxidoreductase of Desulfovibrio gigas , similar displacement of the Mo atom from the equatorial plane toward the apical oxido oxygen atom is also found .…”