Abstract
Preparation of the ammonium salt of TPPMS, [NH4]TPPMS, TPPMS = PPh2(m-C6H4SO3-], greatly enhances water solubility and provides an efficient route to other metal complexes of TPPMS, M(TPPMS)2 M = Mn2+, Co2+, Fe2+ and Ni2+. For Co2+ and Fe2+ the metal has an octahedral ligand environment with five water molecules and one TPPMS coordinated through the sulfonate oxygen; the second TPPMS is not coordinated. For Ni2+ the octahedral coordination sphere is composed of water molecules and the TPPMS ligands are not coordinated. Structures are fully reported for [NH4]TPPMS·1/2H2O and [Fe(H2O)5(TPPMS)]TPPMS and partially reported for [Co(H2O)5TPPMS]TPPMS and [Ni(H2O)6]TPPMS2·H2O. All of the structures show hydrophobic regions consisting of aromatic rings and hydrophilic regions with hydrogen-bonding interactions.
| Original language | English |
|---|---|
| Pages (from-to) | 969-983 |
| Number of pages | 15 |
| Journal | Journal of Coordination Chemistry |
| Volume | 55 |
| Issue number | 8 |
| DOIs | |
| State | Published - 2002 |
Keywords
- Coordination complexes
- Hydrophilic interaction
- TPPMS
- Water-soluble phosphine ligands
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