Syntheses and catalysis of transition metal complexes with hemilabile ligands
Syntheses and catalysis of transition metal complexes with hemilabile ligands 1
... [P, O] ligands 19 ii 1. 4 .1. 1 Ni complexes 19 1. 4 .1. 2 Pd complexes 20 1. 4 .1. 3 Cr complexes 21 1.4 .1. 4 Rh complexes 22 1. 4.2 Reported complexes with ... 15 1. 3.2.4 Phosphine-imine ligands 17 1. 3.3 Bis(phosphine)amine ligands 18 1. 4 Complexes with mixed donor hybrid ligands of interest 19 1. 4 .1 Reported complexes with ... ligands...
Ngày tải lên: 11/09/2015, 10:18
Syntheses and catalysis of transition metal complexes with hemilabile ligands
... enantioselective reduction of ketones to secondary alcohols They are nitrogenbased chelating ligands, diphosphines and heterobidentate [P, N] ligands 6.1.3.1 Nitrogen-based ligands A number of highly efficient ... The mixture of Pd2(dba)3, ligand and chloroform were made Preliminary analyses were performed on a one-pot reaction of Pd2(dba)3, ligand L1k in chloroform stirred a...
Ngày tải lên: 11/09/2015, 10:18
Tài liệu Báo cáo khoa học: Structure of RNase Sa2 complexes with mononucleotides – new aspects of catalytic reaction and substrate recognition pptx
... for some of the differences observed in substrate recognition and RNA cleavage between RNases Sa2 and Sa 2¢-GMP in the active site of RNase Sa2 To obtain a set of complexes of RNase Sa2 with the ... understand the mechanism of RNA cleavage and differences in the catalytic properties of the two RNases, we have solved the structures of RNase Sa2 with...
Ngày tải lên: 18/02/2014, 11:20
Development of transition metal catalyzed c s and c c cross coupling reactions
... of cross- coupling reactions of aryl halides in the processes of C C, C N and C S bond forming reactions In this dissertation, we have developed new cross- coupling protocols for the synthesis of ... Suzuki and Heck couplings) reactions under mild conditions Chapter 2: Decarboxylative C S Cross- Coupling CHAPTER Synthesis of Vinyl Sulfides by Copper -Catal...
Ngày tải lên: 10/09/2015, 15:50
Group 10 and group 11 transition metal chemistry of benzimidazolin 2 ylidene and indazolin 3 ylidene ligands
... Pd1-S2 2. 35 19(18), Pd2-S1 2. 35 02( 17), Pd2-S2 2. 36 73( 16); C1-Pd1-C 12 92. 4 (2) , C 23- Pd2-C34 94.1 (3) , C1-Pd1-S1 90. 42( 16), C 12- Pd1S2 93 .24 (18), C 23- Pd2-S1 88 .10( 6), C34-Pd2-S2 94. 03( 19), C1-Pd1-S2 174 .27 (17), ... Benzimidazolin- 2- ylidene Imidazolidin -2- ylidene Topology unsaturated, aromatic benzannulated, aromatic saturated, nonaromatic (C2) [ppm]...
Ngày tải lên: 11/09/2015, 10:04
SYNTHESIS, STRUCTURE AND CATALYTIC APPLICATION OF NOVEL CARBENE COMPLEXES WITH BENZOTHIAZOLIN 2 YLIDENE LIGANDS 1
... PdCl ,11 4 -11 6 [Pd(allyl)Cl] , 12 5 - 12 6 PdCl (CH CN) , 83-84 ,11 7- 12 4 Pd(cod)CH Cl, 41, 118 -11 9, 12 7 - 12 8 PdCl (PhCN) ,95 ,11 9 Pd(cod)Cl , 41, 118 ,11 9, 12 8 -13 0 Pd(cod)Br , 41 Pd(cod)CH Br. 41 Ag(I)-NNHC complexes ... transition metal carbene complexes Complexes of Ni(II),78-79 Pd(II),80 Pt(II), 81 Au(I), 82- 91 Rh(I), 92- 10 1 Ir(I),96 ,10 0 ,1 02 Ru(II) ,10...
Ngày tải lên: 14/09/2015, 08:43
SYNTHESIS, STRUCTURE AND CATALYTIC APPLICATION OF NOVEL CARBENE COMPLEXES WITH BENZOTHIAZOLIN 2 YLIDENE LIGANDS 2
... 12. 63, 12. 60 1.53 15.10, 15.10 0.76 5.65, 5.05 - 12. 60, 12. 44 - 27 .3 27 .7 44.7 43.7 24 .5 24 .6 20 8.4 20 6.3 20 8.7 20 6.0 20 7.7 20 5.4 2. 3 02( 2) 2. 289(15) 2. 2 62( 8) 2. 267(8) 1.958(7) 1.971(6) 1.9 72( 3) ... 110.4(4) 111.4 (2) 111.4 (2) 130.7(5) 126 .3(4) 126 .9 (2) 128 .7 (2) 118.5(4) 123 .0(3) 122 .1(6) 123 .2( 5) 121 .61(15) 119.89(16) 122 .7 (2) 123 .8(3) 2. 5...
Ngày tải lên: 14/09/2015, 08:43
SYNTHESIS, STRUCTURE AND CATALYTIC APPLICATION OF NOVEL CARBENE COMPLEXES WITH BENZOTHIAZOLIN 2 YLIDENE LIGANDS 3
... NMR ( 125 . 03 MHz, D2O): δ 135 .2 (im- 13 C2), 133 .3 (CH2CH2CH=CH2), 122 .4 (im C4/5), 118.8 (CH2CH2CH=CH2), 49 .3 (CH2CH2CH2CH3), 48.8 (CH2CH2CH=CH2), 33 .8 (CH2CH2CH=CH2), 31 .2 (CH2CH2CH2CH3), 18.7 ... CH2CH2CH=CH2), 4. 93- 4. 82 (m, 2H, CH2CH2CH=CH2), 3. 75 (t, 2H, 3JHH = 7.4 Hz, CH2CH2CH=CH2), 3. 35 (q, 2H, 3JHH = 6. 93 Hz, CH2CH2CH=CH2), 3 .21 (s, 3H, CH3), 2. 31 (s, 6...
Ngày tải lên: 14/09/2015, 08:43
SYNTHESIS, STRUCTURE AND CATALYTIC APPLICATION OF NOVEL CARBENE COMPLEXES WITH BENZOTHIAZOLIN 2 YLIDENE LIGANDS 4
... obtained from bridge cleavage of dinuclear NSHC complexes of type [PdBr2(NSHC) ]2 (2. 2(a )2. 2(b) and 2. 17) complexes with different nucleophilic ligands Complexes 2. 9 -2. 16 are active in the Suzuki–Miyaura ... II, Sections 2. 4 -2. 8 discusses the synthesis and characterization of a range of mixed-NSHC-L Pd(II) complexes (L = phosphine, aromatic N-heterocycl...
Ngày tải lên: 14/09/2015, 08:43
Synthesis and molecular assemblies of d10 metal complexes bearing 9, 10 disubstituted anthracene ligand
... in both solid state and frozen solution vii Part I Synthesis and Molecular Assemblies of d10 Metal Complexes Bearing 9, 10- Disubstituted Anthracene Ligand Chapter Roles of Anthracene Unit in Inorganic ... Summary…………………………………………………………………………………vi Part I Synthesis and Molecular Assemblies of d10 Metal Complexes Bearing 9, 10- Disubstituted...
Ngày tải lên: 15/09/2015, 17:10
Tài liệu Socio-demographic characteristics and sexual health related attitudes and practices of men having sex with men in central and southern Malawi doc
... research and programmatic interest in efforts aimed to prevent the spread of HIV in Malawi Materials and Methods Study area The study was conducted in the central and southern regions of Malawi and included ... giving verbal informed consent Only men who were having sex with other men were involved in questionnaire distribution and collection The involv...
Ngày tải lên: 14/02/2014, 21:20
Tài liệu Báo cáo khoa học: The role in the substrate specificity and catalysis of residues forming the substrate aglycone-binding site of a b-glycosidase docx
... Furthermore, these data may be of particular importance in understanding the physiological role of b-glycosidases and in designing inhibitors In addition, another important issue in understanding the aglycone ... details about the role of different residues of the aglycone-binding site in the stabilization of ESà and the interdependence between t...
Ngày tải lên: 18/02/2014, 17:20
Tài liệu An Account of the Foxglove and some of its Medical Uses With Practical Remarks on Dropsy and Other Diseases doc
... considered as cases lost to An Account of the Foxglove and some of its by William Withering the common run of practice, and only snatched from destruction, by the efficacy of the Digitalis; and ... I find the following memorandum "February 20th, 1779, gave an account of Doctor Withering's An Account of the Foxglove and some of its by W...
Ngày tải lên: 19/02/2014, 11:20
Báo cáo khoa học: High resolution structure and catalysis of O-acetylserine sulfhydrylase isozyme B from Escherichia coli pot
... FEBS 5383 Structure < /b> of < /b> the O-acetylserine < /b> sulfhydrylase < /b> CysM G Zocher et al Fig Stereo ribbon plot of < /b> the high < /b> resolution < /b> structure < /b> of < /b> the CysM dimer, including the molecular twofold axis (black), ... Five structures of < /b> CysK-type enzymes from bacteria [10–14], archaea [15] and < /b> plants [16,17], and < /b> two structu...
Ngày tải lên: 07/03/2014, 05:20
Báo cáo khoa học: Production and utilization of hydrogen peroxide associated with melanogenesis and tyrosinase-mediated oxidations of DOPA and dopamine docx
... performed with HPLC-ED to determine if, and to what extent, H2O2 was generated during the autoxidations and tyrosinase-mediated oxidations of tyrosine, DOPA, and dopamine This sensitive and specific ... Representative chromatograms of the autoxidation and tyrosinase-mediated oxidations of DOPA, with and without catalase Peak profiles represent levels of DOPA...
Ngày tải lên: 07/03/2014, 17:20