Chapter 4 - Jacobs University

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<strong>Chapter</strong> 5 Organoruthenium POM Figure 5.1 FTIR spectra of compound 3a. Figure 5.2 Thermogravimetric curve showing the loss of crystalline water molecules in complex 3a. 93
<strong>Chapter</strong> 5 Organoruthenium POM 5.3 X-ray crystallography Crystal data for K 12 Li 15 [{K(H 2 O)} 3 {Ru(p-cymene)(H 2 O)} 4 P 8 W 49 O 186 (H 2 O) 2 ]·87H 2 O (3a): A brown crystal of 3a with dimensions 0.15 x 0.08 x 0.04 mm3 was mounted in oil on a Hampton cryoloop for indexing and intensity data collection at 173 K on a Bruker D8 APEX II CCD single-crystal diffractometer using Mo K a radiation (l = 0.71073 Å). Of the 213856 reflections collected (2q max = 52.92°, 98.8% complete), 31644 were unique (R int = 0.1473) and 19575 reflections were considered observed (I > 2s(I)). The data were processed using SAINT (from Bruker AXS) and an absorption correction was performed using the SADABS program (Sheldrick, G. M.; Acta Crystallogr. 2007, A64, 112). Direct methods were used to locate the tungsten atoms (SHELXS-97), and the remaining atoms were found from successive Fourier maps (SHELXL-97). No H or Li atoms were located. In the final refinement, the W, P and Ru atoms were refined anisotropically; all other atoms were refined isotropically, converging to R = 0.065 (I > 2s(I)) and R w = 0.212 (all data). The two highest peaks in the final Fourier map were 5.86 and 4.2 e - /Å 3 , at 0.74 and 0.35 Å from W25, respectively. The deepest hole was -2.6 e - /Å 3 , 0.56 Å from K3. The crystallographic data are provided in Table 5.1. 94
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Synthesis, Structure and Properties
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"The greatest book of philosophy, w
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system, space group I4/m, unit cell
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Acknowledgements The accomplishment
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teaching, and Professor Maravanji S
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2.1.2 Single crystal X-ray diffract
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5.5 Conclusion…………………
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9.1.6.1 Results and discussion…
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9.3.5 Synthesis of K 12 [Hf 4 (µ 2
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Crespo………………………
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Figure 5.4 ORTEP view of the asymme
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Figure 9.6 31 P NMR of 7a in H 2 O/
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Figure 9.34 TGA spectrum of 17a…
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Figure 9.62 FTIR spectrum of 23a…
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Table 9.6 Crystal data and structur
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Chapter 1 Introduction heteropolyan
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Chapter 1 Introduction 1.3 Structur
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Chapter 1 Introduction C) Keggin a-
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Chapter 1 Introduction shows no suc
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Chapter 1 Introduction α-[P 2 W 18
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Chapter 1 Introduction Figure 1.7 B
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Chapter 1 Introduction [P 2 W 18 O
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Curriculum Vitae SIB SANKAR MAL Dep
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EDUCATION PhD Jacobs University (20
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POSTER, ORAL PRESENTATION 1. Poster
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6. “Two Iron-Containing Tungstoge
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Appendix
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Appendix
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