Chapter 4 - Jacobs University

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<strong>Chapter</strong> 9 Unpublished Results Figure 9.16 Thermogravimetric analysis of 11a. 9.1.6.1 Results and discussion The polyanion [Mn 4 (H 2 O) 16 (P 8 W 48 O 184 )(WO 4 ) 1.7 ] 35- (11) (Figure 9.17) contains two pairs of manganese ions which are incorporated in the cavity but on opposite sides. The extra equivalent of tungstate which appears in 11 is most likely formed in situ by decomposition of a very minor fraction of the P 8 W 48 precursor. Compound 11a has been fully characterized in the solid state by single-crystal XRD, TGA-DSC and IR. The molecular structure of 11 reveals that the novel polyanion has four [Mn(H 2 O) 4 ] 2+ groups covalently attached to the cavity of the cyclic P 8 W 48 . 159
<strong>Chapter</strong> 9 Unpublished Results There are also four extra manganese ions linked to the outside of the polyanion, bridging to neighbouring polyanions, form a 2D network. We also performed TGA measurements on 6a from room temperature to 900 °C in order to confirm the number of crystal waters (Figure 9.16). Figure 9.17 Polyhedral/ball and stick type structural representation of 11. Color scheme: Mn, P and WO 6 units are shown by yellow, blue, red and black (disordered, see text) respectively. 160
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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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Chapter 1 Introduction 1.5.3 Medici
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Chapter 1 Introduction (48) Mizuno,
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Chapter 1 Introduction (84) Isabell
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Chapter 2 Experimental 2.2.3 Synthe
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Chapter 2 Experimental 2.2.7 Synthe
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Chapter 2 Experimental 2.2.11 Synth
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Chapter 2 Experimental 2.3Reference
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Chapter 3 The Wheel-Shaped Cu 20 in
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Chapter 3 The Wheel-Shaped Cu 20 3.
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Chapter 3 The Wheel-Shaped Cu 20 Fi
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Chapter 3 The Wheel-Shaped Cu 20 Cu
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Chapter 3 The Wheel-Shaped Cu 20 20
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Chapter 6 U-peroxo-Polyoxometalate
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Chapter 9 Unpublished Results 9.3.3
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Chapter 9 Unpublished Results Table
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Chapter 9 Unpublished Results Table
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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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Chapter 4 - Jacobs University

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