Nucleophilic addition of water to coordinated di-(2-pyridyl)ketone (DPK) in rhenium(V) complexes. Synthesis and crystal structure of the adduct (DPK·H)+[{ReOCl2(DPK·OH)}2Cl]−

Nucleophilic addition of water to 1-isoquinolinyl phenyl ketone. The synthesis, spectroscopic investigation, crystal and molecular structure and DFT calculations of [ReOBr2(iquinpk-OH)(PPh3)]

“…Previously it has been shown that di-(2-pyridyl)ketone (dpk) undergoes nucleophilic attack of water and ethanol at the carbonylic carbon, and the rhenium(V) oxocomplexes of dpkÁOH have been reported [16][17][18]. It seems that the coordination mode of 1-isoquinolinyl phenyl ketone and the related ligands with ketone group is determined to a large extent by the rhenium oxidation state.…”

Crystal structure of [hydroxy-methoxy-di(2-pyridyl)methane- k2N,N'](μ2-thiocyanato-N:S)(thiocyanato-kS)mercury(II), Hg(C12H12N2O2)(SCN)2

“…As abidentate ligand, it maypresent an N,O-coordination giving af ive-membered chelate ring or an N,N'-coordination forming at hree or six-membered ring [1][2][3]. Frequently, the coordinated dpk undergoes nucleophilic addition of water or an alcohol at the carbonylic carbon atom to form the diol or the corresponding hemiacetal, (py) 2 C(OR)(OH), which, deprotonated, acts as mononegative, tridentate N,O,N'-donor ligand.The threedonor atomsmay be coordinated to one metal atom [4][5][6] or two metal atomsinabridging mode [7][8][9]. The asymmetric unit of the title crystal structure consists of one mercury(II) cation, one hydroxy-methoxy-di(2-pyridyl)methane molecule, one bridging SCN anion and one terminal SCN anion.…”

Di-μ-iodido-bis{[hydroxy(methoxy)bis(2-pyridyl)methane-κ3N,O,N′]iodidocadmium(II)}

“…For general background to metal complexes with bis(2pyridyl)ketone or derivative ligands, see: Bandoli et al (1994); Breeze et al (1996); Crowder et al (2004); Hemmert et al (1999); Katsoulakou et al (2002); Kavounis et al (1996); Padhi & Sahu (2008); Papadopoulos et al (1996); Rattanaphani & McWhinnie (1974); Serna et al (2001); Sommerer et al (1993); Tangoulis et al (1997). Table 1 Selected bond lengths (Å ).…”

“…Frequently the coordinated bpk undergoes nucleophilic addition of water or an alcohol at the carbonylic carbon atom to form the diol or the corresponding hemiacetal, (pyridyl) 2 C(OR)(OH), which, deprotonated, acts as a mononegative, tridentate N,O,Ndonor ligand. The three donor atoms may be coordinated to one metal atom (Bandoli et al, 1994;Crowder et al, 2004;Kavounis et al, 1996;Padhi & Sahu, 2008) or to two metal atoms in a bridging coordination (Breeze et al, 1996;Hemmert et al, 1999;Katsoulakou et al, 2002;Papadopoulos et al, 1996;Serna et al, 2001;Tangoulis et al, 1997).…”