A5018367079- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Metal complexes synthesis and properties
- Organometallic Complex Synthesis and Catalysis
- Crystal structures of chemical compounds
- Crystallography and molecular interactions
- Magnetism in coordination complexes
- Metal-Organic Frameworks: Synthesis and Applications
- Asymmetric Hydrogenation and Catalysis
- Coordination Chemistry and Organometallics
- Organometallic Compounds Synthesis and Characterization
- Metalloenzymes and iron-sulfur proteins
- Phenothiazines and Benzothiazines Synthesis and Activities
- Carbon dioxide utilization in catalysis
- Synthesis and Characterization of Heterocyclic Compounds
- Inorganic Chemistry and Materials
- Synthesis and biological activity
- Radiopharmaceutical Chemistry and Applications
- Ferrocene Chemistry and Applications
- Machine Learning in Materials Science
- Catalytic Cross-Coupling Reactions
- Pregnancy and preeclampsia studies
- Phosphorus compounds and reactions
- Nanocluster Synthesis and Applications
- Supramolecular Chemistry and Complexes
University of Dhaka
2007-2018
Cardiff University
2001-2010
University of Rajshahi
2010
Mymensingh Medical College Hospital
2007
Jahangirnagar University
2004-2007
University College London
2007
University of Montana
2004-2005
Lund University
2005
University of Wales
2005
Reactions of M2(CO)10 (M = Re, Mn) with pyrimidine-2-thiol (pymSH) in the presence Me3NO afford tetranuclear square-type complexes [M4(CO)12(μ-κ3-pymS)4] (1, M Re; 2, Mn). Both consist four M(CO)3 units, pairs which are joined by tridentate pyrimidine-2-thiolate ligands. Treatment 1–2 a variety donor ligands results cleavage square to mononuclear species either mono- or bidentate ligand. Triphenylphosphine reacts 2 give [Mn(CO)3(PPh3)(κ2-pymS)] (3) coordinates fashion. With diamines...
The investigation into the substitution and addition chemistry of Re(sigma(2)-terpy)(CO)(3)Cl shows that chloride in (1) may be substituted for acetonitrile to give [Re(sigma(2)-terpy)(CO)(3)(CH(3)CN)][PF(6)] (2), but cationic complex [Re(sigma(2)-terpyMe)(CO)(3)Cl][PF(6)] (4), where pendant pyridine has been methylated, could not achieved using standard conditions. However, use [Re(sigma(2)-terpyMe)(CO)(3)I][PF(6)] (3) results formation [Re(sigma(2)-terpyMe)(CO)(3)(CH(3)CN)][PF(6)](2) (5)....
Abstract Reaction of [Mn 2 (CO) 10 ] with 2‐mercapto‐1‐methylimidazole in the presence Me 3 NO at 25 °C afforded two new dimanganese complexes 6 ( μ ‐SN C 4 H 5 ) 1 and 7 ). Compound consists ligands, each bound through sulfur atom to Mn atoms nitrogen one forming a four‐membered chelate ring. was found consist ligand similar bonding mode but another coordinates atom. also obtained as only product from reaction 8 (NCMe) 2‐mercapto‐1‐methylimidazole. In contrast, [Re led formation di‐, tri‐,...
The reactivity of group 7 metal dinuclear carbonyl complexes [M(2)(CO)(6)(mu-SN(2)C(4)H(5))(2)] (1, M = Re; 2, Mn) toward 8 trinuclear clusters were examined. Reactions 1 and 2 with [Os(3)(CO)(10)(NCMe)(2)] in refluxing benzene furnished the tetranuclear mixed-metal [Os(3)Re(CO)(13)(mu(3)-SN(2)C(4)H(5))] (3) [Os(3)Mn(CO)(13)(mu(3)-SN(2)C(4)H(5))] (4), respectively. Similar treatment Ru(3)(CO)(12) yielded ruthenium analogs [Ru(3)Re(CO)(13)(mu(3)-SN(2)C(4)H(5))] (5),...
Reaction of electron-deficient [Os3(CO)8{μ3-Ph2PCH2P(Ph)C6H4}(μ-H)] (2) with Ph3SnH at ambient temperature yields the bimetallic osmium−tin dihydride complexes [Os3(CO)8{μ3-Ph2PCH2P(Ph)C6H4}(SnPh3)(μ-H)2] (3) and [Os3(CO)8(μ-dppm)(SnPh3)2(μ-H)2] (4) via oxidative-addition one two Sn−H bonds, respectively, latter having SnPh3 ligands bound to adjacent osmium atoms. Cluster 3 converts 4 a further bond followed by reductive-elimination orthometalated diphosphine. Heating 128 °C affords isomeric...
Heating [Os3(CO)10(NCMe)2] with [M2(CO)6(μ-pyS)2] (M = Re, Mn) (1–2) in benzene affords tetranuclear mixed-metal butterfly clusters [MOs3(CO)13(μ3-pyS)] (3–4). Similar reactions Ru3(CO)12 give [MRu3(CO)13(μ3-pyS)] (5–6); however, when the latter is carried out toluene tetraruthenium sulfido cluster [Ru4(CO)12(μ-py)2(μ4-S)] (7) major product. Treatment of Fe3(CO)12 1 refluxing cluster, [Fe2Re2(CO)13(μ-py)(μ-pyS)(μ4-S)] (8), while a similar reaction 2 furnishes tetrairon...
In the title compound, C 11 H 12 N 4 O 2 S, molecules are linked by intermolecular N-HÁ Á ÁN and O-HÁ ÁO hydrogen bonds, forming a hydrogen-bonded network.
The 46-electron quinoline triosmium clusters (μ-H)Os3(CO)9(μ3-η2-C9H5(R)N) (6, R = 4-CH3; 7, H) react with excess CH2N2 at 0 to 25 °C give (μ-H)2Os3(CO)9(μ3-η2-CHC9H5(R)N) (10, 11, H), formed by insertion and subsequent C−H oxidative addition of a CH2 moiety into the ring C(8)−Os bond. In contrast, related quinoxaline compound (μ-H)Os3(CO)9(μ3-η2-C8H5N2) (8) reacts (μ-H)2Os3(CO)9(μ3-η2-CHC8H4(5-CH3)N2) (12), where two groups have inserted C(5)−H bond as well bond,...
Treatment of Mn2(CO)10 with 3,4-toluenedithiol and 1,2-ethanedithiol in the presence Me3NO·2H2O CH2Cl2 at room temperature afforded dinuclear complexes Mn2(CO)6(μ-η4-SC6H3(CH3)S−SC6H3(CH3)S) (1), Mn2(CO)6(μ-η4-SCH2CH2S−SCH2CH2S) (2), respectively. Similar reactions Re2(CO)10 3,4-toluenedithiol, 1,2-benzenedithiol, yielded dirhenium Re2(CO)6(μ-η4-SC6H3(CH3)S−SC6H3(CH3)S) (3), Re2(CO)6(μ-η4-SC6H4S−SC6H4S) (4), Re2(CO)6(SCH2CH2S−SCH2CH2S) (5), In contrast, treatment 1,3-propanedithiol...
The reaction of Mn2(CO)6(pyS)2 (1) with (CpMo(CO)3)2 (2) at 110 °C gives the heterodinuclear complex CpMoMn(CO)3(μ-CO)(μ-η2-pyS))(μ-η1-pyS) (3), mononuclear molybdenum CpMo(CO)2(μ-η2-pyS) (4), and 46-electron trimolybdenum cluster Cp3Mo3(μ-CO)2(μ-S)(μ3-S)(μ-η2-NC5H4) (5). Compound 4 could also be prepared in high yield from 2 pyridine-2-thiol °C. 3 represents a rare example Mo−Mn containing μ-η2-pyridine-2-thiolato, μ-η1-pyridine-2-thiolato, cyclopentadienyl ligand. compound 5 unique three...