Willem G. Haanstra

Unusual chelating properties of the ligand 1,8-bis(3,5-dimethyl-1-pyrazolyl)-3,6-dithiaoctane (bddo). Crystal structures of Ni(bddo)(NCS)₂, Zn(bddo)(NCS)₂and Cd₂(bddo)(NCS)₄

Willem G. Haanstra, W.L. Driessen, J. Reedijk et al. · Journal of the Chemical Society Dalton Transactions · 1989 · 48 citations

Natural Sciences, Chemistry, Materials Science +17

Transition metal complexes of two related pyrazole containing ligands:3,6-dimethyl-1,8-(3,5-dimethyl-1-pyrazolyl)-3,6-diazaoctane (ddad) and 1,4-bis(2-ethyl-(3,5-dimethyl-1-pyrazolyl))-piperazine (bedp). Synthesis, spectroscopy and X-ray structures

Willem G. Haanstra, W.L. Driessen, R. A. G. de Graaff et al. · Inorganica Chimica Acta · 1991 · 41 citations

Natural Sciences, Chemistry, Medicinal Chemistry +16

Unusual behaviour of the thioether function of the ligand 1,8-bis(3,5-dimethyl-1-pyrazolyl)-3,6-dithiaoctane (bddo) towards transition-metal salts. X-Ray structures of a green and a red modification of [Cu(bddo)Cl2]

Willem G. Haanstra, Wilfred A. van der Donk, W.L. Driessen et al. · Journal of the Chemical Society Dalton Transactions · 1990 · 33 citations

Natural Sciences, Chemistry, Crystal Structure +16

Coordination properties of the didentate N,O ligand 1‐(2‐hydroxyethyl)‐3,5‐dimethylpyrazole (hl). Crystal structure of [Cu(HL)₂(NO₃)₂] and [Cu(L)Br]₂

W.L. Driessen, S. Gorter, Willem G. Haanstra et al. · Recueil des Travaux Chimiques des Pays-Bas · 1993 · 28 citations

Natural Sciences, Chemistry, Crystal Structure +11

Co-ordination compounds with the N2S-donor ligand 1,5-bis(3,5-dimethylpyrazol-1-yl)-3-thiapentane

Willem G. Haanstra, W.L. Driessen, Mirjam van Roon et al. · Journal of the Chemical Society Dalton Transactions · 1992 · 26 citations

Natural Sciences, Chemistry, Crystal Structure +16