Heterometallic assemblies from ruthenium 4 ethynylpyridyl precursors

... 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

... (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

... 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

... 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

... 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

... wash my face at 6. 10 I have breakfast at 6. 15 I go to school at 6. 30 Questions: 1- What does Mai do? 2- Where does she live? 3- What time does she get up? 4- What does she at 6. 30? V- Em đọc ... Linh She goes to school from Monday to Saturday Her school is on Nguyen Cao Street and it’s big It has five floors Linh’s classroom is on the 3rd floor She is in grade 6, class 6A Th...

Ngày tải lên: 26/10/2013, 23:11

... O4 (4a1,4e) O4 (4a1,4e) O4 (4a1,4e) O4 (4a1,4e) O4 (4a,4a1,4a2) O4 (4a,4a1,4a2) O4 (4a1,4e2) O8 (8c) O4 (4a1,4e) O9 (9c,9c1) O9 (9c) O9 (9c) Rough O9 (9c,9c1) Rough O3 (3c) O1 [(1–2)a,(1–2)a1,1a,1b] O4 (4a,4e) O1 [(1–2)a,(1–2)a1,1a,1b] ... 19 74 1983 1983 1978 19 64 1975 1979 19 84 1966 1971 1973 Unknown 1973 1983 O3 (3c,3c1) O3 (3c,3c1) O4 (4a,4e) O3 (3c) O3 (3c) Rou...

Ngày tải lên: 08/03/2014, 08:20

... retained DIARY, FROM MARCH 4, 1861, TO NOVEMBER 12, 1862 by ADAM GUROWSKI Boston: Lee and Shepard, Successors to Phillips, Sampson & Co 1862 Entered according to Act of Congress, in the year 1862, ... turn out inadequate to both What a magnificent chance scarcely equal in history to become a great historical personality, to tower over Diary from March 4,...

Ngày tải lên: 24/03/2014, 02:20

... What is Social Media? : an e-book by Antony Mayfield from iCrossing updated 01.08.08 Social computing is not a fad Nor is it something that will pass you or your company by Gradually, social computing ... evolve at dizzying speed in social media What is Social Media? : an e-book by Antony Mayfield from iCrossing updated 01.08.08 The new means of production and...

Ngày tải lên: 28/06/2014, 12:20

... frames Al=[l 0 5;0 I 0;0 11,-0 0 1] ; A2 =[1 0 40 ,-0 0;0 34, -0 0 ] ; %door_dev %calculate deviations E =4. 5/25 .4 dxl=E*V(l) dx2=E*V(2) dyl=E*V(3) dy2=E*V (4) dzl=E*V(5) dz2=E*V(6) %door_errs %door error ... distribution E =4. 5/25 .4; dxl=2*E*(rand-.5) dx2=2*E*(rand-.5) dyl=2*E*(rand-.5) dy2=2*E*(rand-.5) dzl=2*E*(rand-.5) dz2=2*E*(rand-.5) %door_dev_statg %statistical door errors E =4....

Ngày tải lên: 07/08/2014, 04:21

... knowledge in the subject to answer the questions correctly The sentences will provide enough context to make their meaning clear, but the actual subject of the sentence is not important What matters is ... Paper-Based TOEFL Exam (“Structure and Written Expression”) 15–20 minutes 25 minutes 20–25 questions 40 questions Question types (see “Kinds of Structure Questions” below) Question typ...

Ngày tải lên: 09/08/2014, 13:21