76
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Gichumbi JM, Friedrich HB, Omondi B. Synthesis and characterization of half-sandwich ruthenium(II) complexes with N-alkyl pyridyl-imine ligands and their application in transfer hydrogenation of ketones. TRANSIT METAL CHEM 2016. [DOI: 10.1007/s11243-016-0089-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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77
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Naicker D, Pansuriya PB, Friedrich HB. Crystal structure of N, N-bis(diphenylphosphanyl)cyclohexylamine, C 30H 31NP 2. Z KRIST-NEW CRYST ST 2016. [DOI: 10.1515/ncrs-2015-0231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C30H31NP2, monoclinic, P21/n, a = 15.8251(19) Å, b = 10.3667(12) Å, c = 15.900(2) Å, β = 107.225(3)°, V = 2491.5(5) Å3, Z = 4, R
gt
(F) = 0.0390, wR
ref
(F
2
) = 0.0935, T = 163 K.
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78
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Gichumbi JM, Friedrich HB, Omondi B. Solvato-polymorph of [(η6-C6H6)RuCl (L)]PF6 (L = (2,6-dimethyl-phenyl-pyridin-2-yl methylene amine). J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.02.040] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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79
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Gichumbi JM, Friedrich HB, Omondi B. Application of arene ruthenium(II) complexes with pyridine-2-carboxaldimine ligands in the transfer hydrogenation of ketones. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcata.2016.02.012] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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80
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Cwele T, Mahadevaiah N, Singh S, Friedrich HB, Yadav AK, Jha SN, Bhattacharyya D, Sahoo NK. CO oxidation activity enhancement of Ce0.95Cu0.05O2−δ induced by Pd co-substitution. Catal Sci Technol 2016. [DOI: 10.1039/c6cy00981f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synergism between Pd2+, Cu2+ and cerium ions in Ce0.93Pd0.02Cu0.05O2−δ gives improved reducibility and superior performance for CO oxidation.
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81
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Naicker D, Friedrich HB, Pansuriya PB. Iridium and rhodium “PNP” aminodiphosphine complexes used as catalysts in the oxidation of styrene. RSC Adv 2016. [DOI: 10.1039/c6ra01276k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
New Ir and Rh “PNP” aminodiphosphine complexes are effective catalysts in styrene oxidation withtert-butyl hydroperoxide as the oxidant. The Ir catalysts were more active than the Rh catalysts with high yields to benzaldehyde in comparison to styrene oxide.
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82
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Pansuriya PB, Parekh HM, Maguire GEM, Friedrich HB. Clathrate tetraldehyde cavitand: single-crystal structure and NMR study. Supramol Chem 2015. [DOI: 10.1080/10610278.2015.1102261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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83
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Nyawade EA, Friedrich HB, Omondi B, Chenia HY, Singh M, Gorle S. Synthesis and characterization of new α,α′-diaminoalkane-bridged dicarbonyl(η 5 -cyclopentadienyl)ruthenium(II) complex salts: Antibacterial activity tests of η 5 -cyclopentadienyl dicarbonyl ruthenium(II) amine complexes. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.09.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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84
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Nyawade EA, Friedrich HB, Omondi B, Mpungose P. Synthesis and Characterization of New (η5-Cyclopentadienyl)dicarbonylruthenium(II) Amine Complexes: Their Application as Homogeneous Catalysts in Styrene Oxidation. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00564] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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85
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Miller SF, Friedrich HB, Holzapfel CW, Dasireddy VDBC. Effects of Organic Modifiers on a Palladium Catalyst in the Competitive Hydrogenation of 1-Octene Versus Octanal: An Evaluation of Solid Catalysts with an Ionic Liquid Layer. ChemCatChem 2015. [DOI: 10.1002/cctc.201500401] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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86
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Pansuriya PB, Bala MD, Friedrich HB, Maguire GE. Hydrogen bonded co-crystallised layered isopropanol-pyrogallol[4]arenes. Supramol Chem 2015. [DOI: 10.1080/10610278.2015.1026820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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87
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Qwabe LQ, Friedrich HB, Singh S. Preferential oxidation of CO in a hydrogen rich feed stream using Co–Fe mixed metal oxide catalysts prepared from hydrotalcite precursors. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcata.2015.04.020] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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88
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Pansuriya PB, Maguire GEM, Friedrich HB. Synthesis and structural elucidation of a novel polymorph of alcaftadine. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 142:311-319. [PMID: 25706601 DOI: 10.1016/j.saa.2015.01.090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Revised: 01/16/2015] [Accepted: 01/29/2015] [Indexed: 06/04/2023]
Abstract
In this study, we have synthesized and elucidated the structure of the H1 histamine antagonist, 2-(1-methylpiperidin-4-ylidene)-4,7-diazatricyclo[8.4.0.0((3,7))]tetradeca-1(14),3,5,10,12-pentaene-6-carbaldehyde in the solution and solid-state. We have also studied the thermal dilapidation of the compound. Solution structure analysis was achieved by employing NMR spectroscopy including 2D experiments NOESY, HSQC and HMBC, while solid state investigations were undertaken using SXRD, PXRD, TGA, DSC, and IR spectroscopy. For the first time the single crystal structure of alcaftadine has now been solved. Crystallographic data are as follows: monoclinic, Cc, a=11.5694(6)Å, b=14.5864(6)Å, c=10.2688(4)Å, α=90°, β=111.793(3)°, γ=90°, V=1609.07(13)Å(3), Z=4. The Hirshfeld surface analyses also have been performed using the crystal structure.
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89
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Pansuriya PB, Friedrich HB, Maguire GEM. Crystal structure of 1-[2-[(2-chloro-3-thienyl)methoxy]-2-(2,4-dichlorophenyl) ethyl]-1H-imidazole, C16H13Cl3N2OS. Z KRIST-NEW CRYST ST 2015. [DOI: 10.1515/ncrs-2014-0210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract C16H13Cl3N2OS, monoclinic, P21/c (no. 14), a = 10.0547(4) Å, b = 9.8289(3) Å, c = 16.6993(7) Å, β = 90.659(2)°, V = 1650.2 Å3, Z = 4, Rgt(F) = 0.0348, wRref(F2) = 0.0891, T = 173 K.
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90
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Naicker D, Friedrich HB, Omondi B. Cobalt aminodiphosphine complexes as catalysts in the oxidation of n-octane. RSC Adv 2015. [DOI: 10.1039/c5ra07365k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
New cobalt “PNP” aminodiphosphine complexes have been prepared and characterised. They show good catalytic activity in the oxidation of n-octane to C8 oxygenates using tert-butyl hydroperoxide as an oxidant.
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91
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Dasireddy VD, Friedrich HB, Singh S. A kinetic insight into the activation of n-octane with alkaline-earth metal hydroxyapatites. SOUTH AFRICAN JOURNAL OF CHEMISTRY 2015. [DOI: 10.17159/0379-4350/2015/v68a26] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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92
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Dasireddy VD, Singh S, Friedrich HB. Vanadium oxide supported on non-stoichiometric strontium hydroxyapatite catalysts for the oxidative dehydrogenation of n-octane. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcata.2014.08.044] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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93
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Parekh HM, Pansuriya PB, Friedrich HB, Maguire GEM. Crystal structure of 1,21,23,25-tetrapentyl-2,20:3,19-dimetheno- 1H,21H,23H,25H-bis[1,3]dioxocino[5,4-i:5',4'-i']benzo[1,2-d:5,4-d']-bis- [1,3]benzodioxocin-7,11,15,28-tetrol], C56H72O14. Z KRIST-NEW CRYST ST 2014. [DOI: 10.1515/ncrs-2014-0167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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94
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Cele MN, Friedrich HB, Bala MD. Liquid phase oxidation of n-octane to C8 oxygenates over modified Fe-MOF-5 catalysts. CATAL COMMUN 2014. [DOI: 10.1016/j.catcom.2014.08.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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95
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Thakar AS, Friedrich HB, Joshi KT, Maguire GEM. Crystal structure of 5-methyl-2-phenyl-4-[1-(4-p-tolyl-thiazol-2-ylamino)- ethylidene]-2,4-dihydropyrazol-3-one, C22H20N4OS. Z KRIST-NEW CRYST ST 2014. [DOI: 10.1515/ncrs-2014-0158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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96
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Thakar AS, Friedrich HB, Joshi KT, Maguire GEM. Crystal structure of 2-(3-chloro-phenyl)-5-methyl-4-[1-(4-p-tolyl-thiazol- 2-ylamino)-ethylidene]-2,4-dihydro-pyrazol-3-one, C22H19ClN4OS. Z KRIST-NEW CRYST ST 2014. [DOI: 10.1515/ncrs-2014-0161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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97
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M’thiruaine CM, Friedrich HB, Nyawade EA, Omondi B. Syntheses and structural characterization of 2,4,6-trimethylaniline complexes of iron carbonyls. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.09.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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98
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Elkhalifa EA, Friedrich HB. Oxidative dehydrogenation and aromatization of n-octane over VMgO catalysts obtained by using different MgO precursors and different precursor treatments. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcata.2014.04.018] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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99
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Chetty T, Friedrich HB, Dasireddy VDBC, Govender A, Mohlala PJ, Barnard W. Effect of Various Au/Al2O3Preparations on Catalytic Behaviour during the Continuous Flow Hydrogenation of an Octanal/Octene Mixture. ChemCatChem 2014. [DOI: 10.1002/cctc.201400043] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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100
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Thakar AS, Parekh HM, Pansuriya PB, Friedrich HB, Maguire GEM. Preparation of Enantiomerically PureC4-Symmetric Tetramethoxyresorcarenes by Using the (-)-(S)-1-Phenylethyl Isocyanate Chiral Auxiliary. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402125] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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