New Organophosphorus Proligands and Amide Precursors: Crystal and Molecular Structures of Ph2P(X)NH(C6H3Pri2-2,6) (X = O, S) and (OPPh2)(O2SMe)N(C6H3Pri2-2,6)
The new organophosphorus proligand (OPPh2)(O2SMe)NR (R = C6H3Pri2-2,6) (3) was prepared as a white crystalline solid by reacting the lithiated compound Li[Ph2P(O)NR] with MeSO2Cl in a 1:1 molar ratio. The precursor Ph2P(O)NHR (1), as well as its thio analogue Ph2P(S)NHR (2), were obtained
in the reaction between the lithiated amine RNHLi and the corresponding organophosphorus chloride. All compounds were characterized by multinuclear (1H, 13C, and 31P) NMR spectroscopy. The molecular structures of 1-3 were established by single-crystal X-ray diffraction. A zigzag polymeric
chain is formed in the crystals of 1 and 2 by hydrogen N-H···X (X = O, S) bonding, while the crystal of 3 contains discrete monomeric units with a syn-syn conformation of the O=P(C)2-N-S(C)(=O)2 skeleton. Supplemental materials are available for this article. Go to the
publisher's online edition of Phosphorus, Sulfur, and Silicon and the Related Elements to view the free supplemental file.
Keywords: Molecular structure; NMR spectroscopy; organophosphorus ligands
Document Type: Research Article
Affiliations: 1: Faculty of Chemistry & Chemical Engineering, “Babes-Bolyai” University, Cluj-Napoca, Romania 2: Chemistry Department, Faculty of Science, Ege University, Bomova-Izmir, Turkey
Publication date: 01 April 2010
- Access Key
- Free content
- Partial Free content
- New content
- Open access content
- Partial Open access content
- Subscribed content
- Partial Subscribed content
- Free trial content