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C0pper(ll) complexes The room temperature peg of trinuclear complex 8 and tetranuclear complex 9 are found to be 3.09 and 3.6 pg respectively, and as the temperature is lowered peg decreases gradually and reaches a minimum of 0.53 pg for 8 and 0.47 pg for 9 at 5 K. Both compounds show dominant antiferromagnetic interactions as evidenced by the variable temperature magnetic behaviour curves. The slightly higher peg value at room temperature for 8 (by 3%) and 9 (by 4%) compared to spin only magnetic moments for three and four independent Cu(II) species respectively may be attributed to the presence of orbital contribution. It has been shown that the orbital contribution of electrons to the magnetic moment is expected only in tetrahedral, trigonal planar, and trigonal pyramidal complexes for Cu(II) on the basis of the molecular orbital theory [45]. The effective magnetic moment of tetrahedral monomeric Cu(II) complexes has been estimated to be about 2.2 pg at room temperature and that of tri-coordinated Cu(II) complexes to be higher than the spin-only value [45]. For the trinuclear copper(II) complex 13, peg at room temperature is 2.19 pg and decreases on cooling and reaches to a minimum of 0.31 pg at 5 K. For all the other complexes, the room temperature effective magnetic moment peg ranges from 1.83 to 2.44 pg. The values include 2.2, 1.90, 2.44, 2.0, 2.09, 2.13, 1.83, 2.03 and 1.98 pg respectively at room temperature and show minimum of 0.29, 0.30, 0.31, 0.29, 0.40, 0.28, 0.24, 0.26 and 0.26 pg at 5 K respectively for complexes 10, 11, 12, 14, 15, 16, 17, 18 and 19 respectively. The thermal dependence curves of peg of all these complexes are almost similar and show a regular decrease on cooling, which suggest strong antiferromagnetic interactions between the Cu(II) centers. The experimental temperature dependence curves of molar magnetic susceptibility Xm and effective magnetic moments peg of all complexes are given in Figs. 4.40 to 4.51. 171
Chapter 4 U 1 .I - O i I . I II I 3.5_ii'i'i'|*|'i'i'|_|Q_QQ3 __‘I 3.0 1 ‘I ' \ OI II -I. — 0.007 2.5 in - - O-I 2.0 .... 1.5 1i Q I II. ‘ fog _— 0.005 — Q I QI 1.0 _ I 0 00 0.5 I OOOOOOOOOOOOOQQOQOOOOQOO _ 0004 ‘I I I | I | I | I | I | I I I | I 0 50 100 150 200 250 300 350 T (K) Fig. 4.40. Temperature dependence of effective magnetic moment pm (I) and of molar magnetic susceptibility X,“ (O) of 8. 1 | I | I | I | I I. | .. | | I | I | 0.0075 a-u 0.0070 1 0.0065 -5"‘ , I O II 0000 — 0.0055 g Cb O OQOOOQ 0 . O _ 9 OOQO o 0 -I | I | I | I | I | I | I I I | 1 Fig. 4.41. Effective magnetic moment pm (I) and molar magnetic susceptibility X,“ (0) data as a function of temperature for 9. 172 0 50 100 150 200 250 300 350 T(K) 0.0050 |Ii I-\ a-I I-1 I .
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7,2/H5 Self-assembled Transition Me
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, Phone orr. 0484-2575804 ; Phone R
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‘ilC7(,'NO’WLQ'I(D QEMEWT In tl
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PREFACE In its method, chemistry is
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CONTENTS CHAPTER 1 Introduction to
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4.3.5. Magnetochemistry 4.3.6. Char
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Chapter I__ _ _ irreducible, is a n
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Chapter I W 7 _ W _ 7 pg _ jg to pr
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Chapter I H_ g g 7 g 7 7 __ harvest
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Chapter I _ _ ______g__H _ g involv
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Chapter I _ g plays a pivotal role
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Chapter I g g _ exhibit considerabl
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Chapter I _, assemblies to generate
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Chapter I _ ,_ of mono or dinuclear
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Chapter I M W 7 7 _ __ 1.3.1.1. Ant
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Chapter I _ _ _ _ \_ 4- Jm _. _.
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Chapter In g_ g _ E __ _ E __( > es
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Chapter I W__‘ _ 1.6.6. MALDI MS
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Chapter I ,,_ g electron spin (the
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Chapter I W _ _ Traditional magnets
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Chapter I L.K. Thompson, O. Waldman
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Chapter I i __ _ Org. Chem. 31 (200
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Chapter In _g , g H g 85. S. Padhye
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Chapter 2 1 g anticipation of Cu(H)
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Chapter 2 _. M_ _ up 1. Quinoline-2
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Chapter 2 chloroform solution and d
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Chapter2 V _ _ _ _, 7 _ with aceton
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Chapter 2 _ 7 f __ i 2.3. Results a
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100s0- I > J 20
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— — 1 Ligands 1
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Ligands The ‘H and "C NMR spectra
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Ligands The ‘H NMR spectrum of HZ
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M1 1‘ 11 IL; Fig. 2.11. 'H NMR sp
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' | Ligands uo no 1&0 150 no no no
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Ligands Table 2. 3. Crystal data an
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Ligands The C-S bond distances of 1
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ligands between the planes of Cg(2)
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" F Ligands A indicates a typical d
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' ' Q 0' ¢ ¢" .~ 0~ I Q Q Q \ ' Q
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2.4.2. M TT Cell Proliferation Assa
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Table 2.9. Cell proliferation effec
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7 y _ i _ W Ligands B. Moubaraki, K
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CHAPTER Ni(II) complexes of carbohy
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_ _ __ g_ g W g H__ Ni(ll) complexe
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_ g A __ Ni(lI) complexes The reddi
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3.3. Results and discussion g_g _ N
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3.3.1. MALDI MS spectral studies of
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Ni(Il) complexes In the case of com
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100 U-
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3.3.2. IR and electronic spectral s
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Chapter 3 The electronic spectra of
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t§hqphw*3 v(Ni—S), further suppo
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Chapter 3 charge transfer bands. Fo
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Chapter 3 were refined anisotropica
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Chapter 3 3.3.3.1. Crystal structur
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Chapter 3 Table 3.7. Selected bond
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Chapter 3 N(l3)—C(35), N(2l)-C(58
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3.3.3.2. Crystal structures 0f[Ni(H
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Table 3.10. Selected bond lengths (
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Ni(lI) complexes significant 1t---1
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3.3.4. Magnetochemistry of the mole
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Ni(Il) complexes The allowed values
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in xn In
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g 7 Ni(Il) complexes 3.4. Concludin
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Page 136 and 137: _ g “FOUR CHAPTER Cu(II) complexe
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Page 140 and 141: _ _ , p f 7, Copper-(II) complexes
Page 142 and 143: pp g _g _4_,_ C0pper(II) complexes
Page 144 and 145: g _,_,_ g g Copperfll) complexes in
Page 146 and 147: i ____ 3+ i --—- C 0pper(H) 2+ co
Page 148 and 149: C0pper(Il) complexes 499 100i ~04 7
Page 150 and 151: .04Copper(II) complexes 385 50.1I 1
Page 152 and 153: 100-I 4 -1 U ” Q 7°-J 59-: "1
Page 154: C0pper(lI) complexes confirm the po
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Page 160 and 161: C0pper(1l) complexes state, similar
Page 162 and 163: 2 5 2.5MW 20 Q 1.51 2oo'aoo'45o's
Page 164: Copper(lI) complexes F1 = g",3B:S:
Page 167 and 168: Chapter 4 for both species consider
Page 169 and 170: Chapter 4 The spectrum of compound
Page 171 and 172: Chapter 4 stability alone could not
Page 173 and 174: Chapter 4 zénzénzénzénénaloeé
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Page 177 and 178: Chapter 4 The shifting of g values
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Page 181: Chapter 4 The solid state and some
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Page 187 and 188: . , Chapter 4 2.5 I I ' I ' I ' I '
Page 189 and 190: Chapter 4 The field dependence of m
Page 191 and 192: Chapter 4 Where ,1’ M is the magn
Page 193 and 194: Chapter 4 g e The powder and frozen
Page 195: Chapter 4 various aspects like bond
Page 198 and 199: C0pper(ll) complexes Table 4.6. Sel
Page 200 and 201: ,____ p _p C0pper(H) complexes from
Page 202 and 203: Ed. Engl. 31 (1992) 733. 7___7 7 7
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Page 206 and 207: -_ FIVE CHAPTER Spectral and magnet
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Page 210 and 211: q H _ Manganesefll) complexes [Mn2(
Page 212 and 213: Manganese(Il) complexes lcmzmoll in
Page 214 and 215: 1W3 "l U 70 60 40 30 10 490 740 979
Page 216 and 217: Manganese(II) complexes MALDI MS sp
Page 218 and 219: 5.3.2. EPR spectral studies Mangane
Page 220 and 221: Manganese(II) complexes D and E , e
Page 222 and 223: the pattern is uncertain and it is
Page 224 and 225: __ I . l r Manganese(II) complexes
Page 226: " |\ Man ganese(II) complexes 80" 6
Page 229 and 230: Chapter 5 thiocarbohydrazone comple
Page 231 and 232: Chapter 5 To fit and interpret the
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Chapter 5 #1 IT 0.00 1 — ‘ I '
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Chapter 5 The temperature dependenc
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Chapter 5 ___ M _ 357 (2004) 2694.
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Chapter5 p _ _ S. Sivakumar, Struct
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Chapter 6 _ _ __ 7 the latter have
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Chapter6A, 0 0 _, 0 0 _* 4, W 0 0 0
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Chapter 6 g _ _ [Cd(HL2) ].,(1v0_.)
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Chapter 6 / ‘~ ' if‘ . l \ N N/
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1 | Chapter 6 100m__ ‘ 76$ mi, 16
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3 - i El Q I Chapter 6 - '3“ 1999
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Chapter 6 The compound 27 exhibits
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(T71aq7tew'¢5 centered at 1711.9 c
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1 . 1 Chapter 6 1244 100--1-; 1245
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Chapter 6 6.3.2. Electronic and IR
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Chapter 6 band at 19160 and 23920 c
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Zinc(II) & Cadmium(II) complexes Th
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.- 60- I ‘J TZinc(Il) & Cadmium(l
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Zinc(Il) & Cadmium(Il) complexes re
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Zinc(II) & C admium(ll) complexes T
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Fig. 6.25. The molecular structure
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Zinc(lI) & Cadmium(ll) complexes Al
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Zi!lC(II) & Cadmlum(II) C0mlexes Ta
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V _ i Zinc(1I) & Cadmium(lI) comple
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_ g _ g g V Zinc(lI) & Cadmiumfll)
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_, _ g pg L Summary and conclusion
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W g _ g mm Summary and conclusion a
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__ ,_ _ W A _ _ Summary and conclus
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Curriculum Vitae PERSONAL PROFILE N
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2-Hydroxyacetophenone 4-phenylthios
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