Homo and heterometallic assemblies from lewis acidic and basic metallic precursors 1

... H M H NMe2 Pt Me N NMe2 X' X' =BF4 (1. 11a), OTf (1. 11b) Pt PPh3 PPh3 BF4 M = Pd (1. 12a), Pt (1. 12b) Figure 1- 2: Chemical structures of complexes 1. 11 and 1. 12.29 PPh2 M Cl PPh2 AgOTf, acetone ... Pd N 1. 16 1. 15 H3C CH3 N N Pd = Pd N N H3C CH3 Scheme 1- 5: Formation of complex 1. 15 from complex 1. 16.34 The cyano-bridged dinuclear complexes 1. 17 and 1. 18 were synth...

Ngày tải lên: 11/09/2015, 09:01

... 11 32. 6 1133.6 1 122 .6 1133.6 1134 1 122 1 120 1 121 .7 1 121 .7 1 121 1 123 1 121 1 122 1 123 1 124 1 125 1 126 1 127 1 128 1 129 1131 11331133 1 125 1 127 1 129 1130 1131 11 32 (a) Da/e 1134 1 120 1 123 1136 1 126 1 129 ... 22 11 11 24 11 25 11 26 1 27 11 12 1116 1 120 1111 1 124 1 125 1114 1117 1 120 1 123 1108 1109 1110 1111 11 12 1113 1114 1115 1116 1117 1118 1119 1 120 1 121 1...

Ngày tải lên: 11/09/2015, 09:01

... 17. 732 (2) 18.719 (3) 90 101.490(4) 90 32 53. 9(8) 1.578 0.788 2 23( 2) 230 12 15676 R(int) = 0.15 13 74 63 R(int) = 0.0692 10 53 415 0.9 93 R1 = 0.0675, wR2 = 0.1508 R1 = 0. 133 6, wR2 = 0.1768 1.064 and ... Pd(II) centre 3. 1a (Pb) PPh2 Pd NCCD3 OTf PPh2 3. 1a (Pa) 3. 2 PPh2 Pd Ph2 P PPh2 Fe OTf PPh2 3. 3 * * 50 40 30 20 10 -10 -20 (ppm) Figure 3- 3: 31 P{1H} NMR spectrum of...

Ngày tải lên: 11/09/2015, 09:01

... (OC)4Mn P - P =dppm 4. 3a P - P = dppf 4. 3b (CO )4 Mn Ag PPh2 Mn (CO )4 Ag Mn(CO)3 P P P - P =dppm 4. 4a P - P = dppf 4. 4b Scheme 4- 3: Preparation of the Ag/Mn complexes 4. 4a and 4. 4b from 4. 3a and 4. 3b ... (a) P2 and (b) P1 region 4. 4a 4. 4a 4. 4a 4. 4b 200 195 (ppm) P2 200 4. 4b 4. 4b (a) 160 75 (ppm) -5 P1 (ppm) (b) P3 120 80 (c) 40 (ppm) Figure 4- 9: 31P...

Ngày tải lên: 11/09/2015, 09:01

... at 20 °C/min 155 Chapter Five: Heterometallic Oxalato Complexes as Precursors to Metal Oxides Figure 5- 5: SEM micrograph of Mn1.5Cr1.5O4 spinel obtained from thermolysis of 5. 1 at 350 times magnification ... O(2)-K(1)-O(2) #5 142.0(4) O(2)-K(1)-O(3)#4 74.0 (5) O(2)-K(1)-O(3) #5 120 .5( 5) O(2)-K(1)-O(3)#1 96.8(6) O(2)#1-K(1)-O(3) 96.8(6) O(2)#4-K(1)-O(3) 120 .5( 5) O(2)-K(1)-O(3)...

Ngày tải lên: 11/09/2015, 09:01

... complex 6. 5 is shown in Scheme 6- 5 The dithiol ligand 6. 6 can be prepared from commercially available organothiol compounds and alkyl halide [Scheme 6- 5(b)] 185 Chapter Six: Conclusion and Future ... squarato [Figure 6- 2, (c)]208d and trifluoroacetato [Figure 6- 2, (d)]208e ligands have also been studied Synthesis of the heterometallic molecular precursors containing th...

Ngày tải lên: 11/09/2015, 09:01

... HETEROMETALLIC ASSEMBLIES FROM RUTHENIUM 4- ETHYNYLPYRIDYL PRECURSORS BY GE QINGCHUN (M.Sc Nankai University, P R China) A THESIS ... [RuCp(CCpy -4) (dppf)]2[Rh2(O2CCH3 )4] (5. 24) with hydrogen atoms and solvent molecules omitted for clarity 74 Fig 2. 24 Crystal structure of [RuCp(CCpy -4) (dppf)]2[Rh2(O2C(CH3)3 )4] (5.27) with ... clarity 44 Fig 2 .4 Crystal structure of...

Ngày tải lên: 11/09/2015, 10:01

... pyridyl- carboxylate metalloligands and heterometallic complexes by taking advantage of the dual functionality of pyridyl- carboxylate ligands Chapter One gives a general introduction of pyridyl- carboxylate ligands ... (1) to synthesize and characterize novel ruthenium pyridyl- carboxylate metalloligands of different donor sites; (2) to utilize these metalloligands...

Ngày tải lên: 13/10/2015, 16:41

... 2 Marketing Insights from A to Z “R-O-L-A-I-D-S spells RELIEF.” Leo Burnett preferred to create a character that expressed the product’s ... advocacy usiness-to-Business Marketing Most marketing is business-to-business (B2B) marketing even though textbooks and business magazines devote most of their attention to business-to-consumer (B2C) ... also are driven to replace high-cost sales calls...

Ngày tải lên: 24/10/2013, 08:20

... resonance study of the role of nitric oxide and catalase in the activation of guanylate cyclase by sodium azide and hydroxylamine Modulation of enzyme responses by heme proteins and their nitrosyl derivatives ... progress The evidence from the spectroscopic and ligand-binding studies of chlorite dismutase suggest binding of chlorite to the five-co-ordi...

Ngày tải lên: 08/03/2014, 16:20

... Utilisation of complementary and alternative medicine (CAM) practitioners within maternity care provision: results from a nationally representative cohort study of 1,835 pregnant women Amie ... complementary and alternative medicine Complementary and alternative medicine (CAM) - a range of treatments and practices not t...

Ngày tải lên: 28/03/2014, 14:20

... Acute transplantation of glial-restricted precursor cells into spinal cord contusion injuries: survival, differ entiation, and effects on lesion environment and axonal regeneration Exp Neurol 2004, ... completely opposite effects on axon regeneration, neuroprotection, functional recovery and neuropathic pain after transplantation, clearly demonstrating that not all as...

Ngày tải lên: 06/08/2014, 18:21

... article as: Gray et al.: Conformational alterations in the CD4 binding cavity of HIV-1 gp120 influencing gp120 -CD4 interactions and fusogenicity of HIV-1 envelopes derived from brain and other tissues ... Wesselingh SL, Cunningham AL, Ramsland PA, Gorry PR: CD4- binding site alterations in 22 23 24 25 26 27 28 29 30 CCR5-using HIV-1 enve...

Ngày tải lên: 13/08/2014, 01:20

... climate change and its attributed environmental and socio -economic consequences over past decades, particularly over the last several years, has led to a growing body of literature and increasing ... publisher 17 1-1 86 WILLIAM M COLLIER, KASEY R JACOBS, ALARK SAXENA, JULIANNE BAKER-GALLEGOS, MATTHEW CARROLL and GARY W YOHE ISSN: 174 7-7 891 (print), 187 8-0 059 (online)...

Ngày tải lên: 07/10/2012, 15:56