A5075598937- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Metal complexes synthesis and properties
- Ferrocene Chemistry and Applications
- Synthesis and Characterization of Heterocyclic Compounds
- Nonlinear Optical Materials Research
- DNA and Nucleic Acid Chemistry
- Lanthanide and Transition Metal Complexes
- Crystallography and molecular interactions
- Porphyrin and Phthalocyanine Chemistry
- Organometallic Complex Synthesis and Catalysis
- Magnetism in coordination complexes
- Crystal structures of chemical compounds
- Inorganic and Organometallic Chemistry
- Organometallic Compounds Synthesis and Characterization
- Synthesis and biological activity
- Nonlinear Optical Materials Studies
- Metal-Catalyzed Oxygenation Mechanisms
- Synthesis and Biological Evaluation
- Organic Light-Emitting Diodes Research
- Asymmetric Hydrogenation and Catalysis
- Photochemistry and Electron Transfer Studies
- Click Chemistry and Applications
- Synthesis and Properties of Aromatic Compounds
- Ultrasound and Cavitation Phenomena
King Abdulaziz University
2015-2024
Australian National University
2009-2018
University of Jeddah
2015
University of Milan
2009
KU Leuven
2009
The syntheses of trans-[Ru{4,4'-C[triple bond]CC(6)H(2)[2,5-(OEt)(2)]C[triple bond]CC(6)H(4)NO(2)}Cl(dppm)(2)] (19), trans-[Ru{4,4',4''-C[triple bond]CC(6)H(4)C[triple (20), trans-[Ru{4,4',4'',4'''-C[triple bond]CC(6)H(4)NO(2)}Cl(dppe)(2)] (21), (22), (23), and trans-[Ru{4,4',4'',4''',4''''-C[triple (24) are reported, together with those precursor alkynes, complexes the donor-pi-bridge-acceptor formulation that affords efficient quadratic cubic NLO compounds; identity 19 was confirmed by a...
The article illustrates the design flexibility of tridentate ligands and resultant platinum complexes, highlighting impact this on anticancer potential.
A set of five gold complexes with the general formula Au(PR3)(C≡C-C6H4-4-R′) (R = PPh3, R′ –CHO (1), R PCy3, (2), –N=CH-C6H4-2-OH (3), –N=CH-C6H4-4-OH (4), (5)) were synthesized and characterized by elemental analysis, 1H-NMR spectroscopy, 31P-NMR mass spectrometry. The structures 2 5 determined X-ray crystallography. effects structural modifications on protein binding affinities anticancer activities assessed. Fluorescence quenching experiments to assess human serum albumin (HSA) revealed...
3,6-Diethynyl-9,10-diethoxyphenanthrene (4) was synthesized from phenanthrene and employed in the synthesis of binuclear gold(I) alkynyl complexes (R3P)Au(C≡C–3-[C14H6-9,10-diethoxy]-6–C≡C)Au(PR3) (R = Ph (5a), Cy (5b)). The diyne 4 5a 5b were characterized by NMR spectroscopy, mass spectrometry, elemental analysis. UV-Vis spectroscopy studies metal precursor show strong π → π* transitions near UV region that red shift ca. 50 nm upon coordination at gold centers. emission spectrum shows an...
The syntheses of trans-[Ru(4,4′-C≡CC6H4C≡CC6H4NO2)Cl(dppe)2] (19) and the systematically varied complexes trans-[Ru(4,4′,4′′-C≡CC6H4X2C6H4Y2C6H4NO2)Cl(L2)2] [L2 = dppe, X2 C≡C, Y2 (E)-CH=CH (12), C≡C (18); L2 (E)-CH=CH, (14), (16); dppm, (13); (15), (17)] are reported, latter being donor-bridge-acceptor varying in bridge composition by replacement yne with E-ene linkages, together their cyclic voltammetric data, linear optical, quadratic nonlinear optical response data. RuII/III oxidation...
A set of copper(I) coordination compounds with general formula [CuBr(PPh3)(dppz-R)] (dppz-R = dipyrido[3,2-a:2’,3’-c]phenazine (Cu-1), 11-nitrodipyrido[3,2-a:2’,3’-c]phenazine (Cu-2), 11-cyanodipyrido[3,2-a:2’,3’-c]phenazine (Cu-3), dipyrido[3,2-a:2’,3’-c]phenazine-11-phenone (Cu-4), 11,12-dimethyldipyrido[3,2-a:2’,3’-c]phenazine (Cu-5)) have been prepared and characterized by elemental analysis, 1H-NMR 31P-NMR spectroscopies as well mass spectrometry. The structure Cu-1 was confirmed X-ray...
Three tridentate Schiff base ligands were synthesized from the reactions between 2-picolylamine and salicylaldehyde derivatives (3-ethoxy (OEt), 4-diethylamino (NEt 2 ) 4-hydroxy (OH)).
The reactions of a range aromatic primary amines with pyridine-2-carboxaldehyde were reported, highlighting the effect substituents amine on outcomes Schiff base reactions. variant products reacted cis-[PtCl2(DMSO)2], generating platinum(II) complexes PtCl2(N^N) general formula. ligands and identified characterized by IR NMR spectroscopic methods. Single crystal XRD offered structural confirmation for three organic compounds two platinum complexes. spectral, antimicrobial, DNA-binding...
CuBr(PPh3)2(4,6-dimethylpyrimidine-2-thione) (Cu-L) was synthesized by stirring CuBr(PPh3)3 and 4,6-dimethylpyrimidine-2-thione in dichloromethane. The crystal structure of Cu-L obtained, indicated that the complex adopts a distorted tetrahedral with several intramolecular hydrogen bonds. Moreover, centrosymmetric dimer is formed intermolecular bonding bromine acceptor created symmetry operation 1−x, 1−y, 1−z to methyl group (D3 = C42) pyrimidine–thione ligand. HSA-binding its ligand were...
We report a sonochemical method for the fabrication of stable TiO<sub>2</sub>–chitosan hybrid microspheres possessing nanoporous structure and antimicrobial properties.
The treatment of an aqueous acetonitrile solution chloroplatinic acid hydrate H2PtCl6.xH2O and pyridine-2-carbaldehyde-oxime (paOH) in the presence potassium thiocyanate at room temperature (25°) led to formation a new Pt(IV) complex with formula [Pt(SCN)2(paO)2], (1). Complex 1 was fully characterized by FT-IR, UV-vis NMR spectroscopic techniques as well elemental analysis. crystallographic structure obtained single-crystal X-ray diffraction. consists distorted octahedral geometrical...
The initial growth of acoustic cavitation activity is important in some applications such as therapeutic and diagnostic medicine. has been investigated using sonoluminescence sonochemical (sonochemiluminescence) at 358 kHz, 647 kHz 1062 5 W, 15 W 30 applied power levels. sonochemically active bubble population found to be much faster than that whereas almost similar rate observed for both populations. This suggests the resonance size ranges bubbles are different they have range kHz. At...
An experimental protocol has been developed for synthesizing stable core–shell microcapsules using a biopolymer, chitosan, lacking cross-linkable thiol functional groups. In the first step, moieties were introduced into backbone of chitosan DL-N-acetylhomocysteine thiolactone (AHT). second AHT-modified shelled microcapsules, encapsulating an oil core, successfully prepared high intensity 20 kHz ultrasound. The size and AHT modified was found to be in range 1–15 μm. thickness microcapsule...
[Mn(SCN)2(2,2′-bipy)2] (1) and [Co(SCN)2(2,2′-bipy)2] (2) were synthesized at ambient temperature by adding aqueous solutions of manganese(II) or cobalt(II) chloride hydrate to acetonitrile 2,2′-bipyridine (2,2′-bipy) potassium thiocyanate. Elemental analyses, FT-IR UV–vis spectra used characterize 1 2. Single crystal X-ray diffraction was analyze the structures 2, revealing that two are structurally similar. The molecular 2 consist Mn Co ion chelated molecules 2,2′-bipy through four...