Homo and heterometallic assemblies from lewis acidic and basic metallic precursors 2

... 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

... causes of failure: organizational change (29 percent), company politics/inertia (22 percent), lack of CRM understanding (20 percent), poor planning ( 12 percent), lack of CRM skills (6 percent), ... Recognize that competitive advantages are relative, not absolute 22 Competitors 23 If the competition is improving by 30 percent and you by 20 percent, you are losing competitive advantage Sin...

Ngày tải lên: 24/10/2013, 08:20

... Experimental procedures of the porcine 2-5A synthetase (data not shown) Figure demonstrates the results of the purification of the recombinant proteins The occurrence of dominant bands of the recombinant ... activity of the recombinant porcine 2-5A synthetase (A) and N-terminally His-tagged recombinant 2-5A synthetase from G cydonium (B) during h...

Ngày tải lên: 23/03/2014, 09:20

... article as: Kadow et al.: Recombinant expression and purification of the 2,5-diketocamphane 1,2-monooxygenase from the camphor metabolizing Pseudomonas putida strain NCIMB 10007 AMB Express 2011 ... amount of enzyme that catalyzes the oxidation of μmol of substrate per minute Results Cloning, expression and purification of 2, 5-diketocamphane 1...

Ngày tải lên: 21/06/2014, 02:20

... 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

... natural disaster risk management Future natural disaster risk under climate and socio -economic change 2.1 Impact of socio -economic developments on natural catastrophe damage Human-induced developments ... 2.2 Climate change and the frequency and severity of natural disasters In addition to socio -economic developments, climate change may increase the intensity and s...

Ngày tải lên: 07/10/2012, 15:57

... protection measures, such as dikes or building codes Over time, catastrophe models need to be updated due to socio -economic developments and climate change In case climate change increases the frequency ... combination of climate and socio -economic change that will influence future natural disaster ENVIRONMENTAL HAZARDS 218 Botzen and van den Bergh losses results in i...

Ngày tải lên: 07/10/2012, 15:57