Crystal structure | An-Najah Staff

Synthesis, Spectral, Thermal, X-Ray Single Crystal of New Rucl2(Dppb)Diamine Complexes and Their Application in Hydrogenation of Cinnamic Aldehyde

Wed, 2013-03-13 16:57 — Ismail Warad

Journal Title, Volume, Page:

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy Volume 95, September 2012, Pages 374–381

Year of Publication:

2012

Link:

http://www.sciencedirect.com/science/article/pii/S1386142512003435

Authors:

Ismail Warad

Department of Chemistry, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia

Current Affiliation:

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

[email protected]

Hanan Al-Hussain

Department of Chemistry, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia

Rawhi Al-Far

Department of Applied Sciences, Faculty of Applied Sciences and I.T., Al-Balqa’ Applied University, Salt 19117, Jordan

Refaat Mahfouz

Department of Chemistry, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia

Belkheir Hammouti

LCAE-URAC18, Faculté des Sciences, Université Mohammed Ier, B.P. 717, Oujda 60000, Morocco

Taibi Ben Hadda

Laboratoire de Chimie Matériaux, FSO, Université Mohammed Ier, Oujda 60000, Morocco

Preferred Abstract (Original):

The preparation of new three trans-[RuCl2(dppb)(N–N)] with mixed diamine (N–N) and 1,4-bis-(diphenylphosphino)butane (dppb) ligands, starting from RuCl2(PPh3)3 as precursor is presented. The complexes are characterized on the basis of elemental analysis, IR, 1H, 13C and 31P{1H}NMR, FAB-MS, TG/DTA and single crystal X-ray diffraction studies. Complex (2L1) crystallizes in the monoclinic unit cells with the space group P21. The catalysts are evaluated for their Cinnamic aldehyde hydrogenation. The catalysts show excellent activity and selectivity for the unsaturated carbonyl compound under mild conditions.

Synthesis, Spectral, Thermal, and a Crystalline Structure of Complexes Containing [Mec(CH2PPh2)3Cu(I)]

Wed, 2013-03-13 15:29 — Ismail Warad

Journal Title, Volume, Page:

Research on Chemical Intermediates February 2013, Volume 39, Issue 2, pp 721-732

Year of Publication:

2013

Link:

http://link.springer.com/article/10.1007/s11164-012-0592-z

Authors:

Ismail Warad

Department of Chemistry, Science College, King Saud University, PO Box 2455, Riyadh 11451, Saudi Arabia

Current Affiliation:

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

[email protected]

Omar H Abd-Elkader

Electron Microscope Unit, Zoology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia

Ahmed Boshaala

Chemistry Department, Faculty of Science, Benghazi University, PO Box 1308, Benghazi 130800, Libya

Nabil Al-Zaqri

Belkheir Hammouti

LCAE-URAC18, Faculte ´ des Sciences, Universite ´ Mohammed 1er, 60000 Oujda, Morocco

Taibi Ben Hadda

Laboratoire Chimie Mate ´ riaux, FSO, Universite ´ Mohammed 1er, 60000 Oujda, Morocco

Preferred Abstract (Original):

The preparation of new [MeC(CH2PPh2)3CuCl] 1 and its derivatives was carried out directly by mixing of CuCl and MeC(CH2PPh2)3 ligand in dry THF, the neutral precursor 1 served to prepare [MeC(CH2PPh2)3Cu(NCCH3)]BF4 2 and [MeC(CH2PPh2)3Cu(PCH2Ph)3]BF4 3. These complexes are characterized on the basis of elemental analysis, IR, EDS, 1H, 13C and 31P{1H}NMR, FAB-MS, TG/DTA and single-crystal X-ray diffraction studies. Complex 1 crystallizes in the Orthorhombic unit cells with the space group Pna2(1). The structural behavior of MeC(CH2PPh2)3 ligand in the formed complexes during the coordination reaction was monitored by 31P{1H}NMR in CDCl3 at room temperature for the first time.