Crystal Chemistry and Properties of Materials with Quasi-One-Dimensional Structures

An Approach to One-Dimensional Compounds.- 1. Structural considerations.- 2. 1D Structures for intercalation chemistry.- 3. 1D Materials as conductors.- 3.1. Nature and origin of instabilities.- 3.2. From Krogmann's salts to NbSe3.- 3.3. Charge density wave depinning.- 4. Conclusion.- Orbital Interaction Analysis for the Electronic Structures of Low-Dimensional Solids.- 1. Introduction.- 2. Crystal structure and band orbital.- 2.1. Direct and reciprocal lattice.- 2.2. Band orbital formation.- 3. Peierls distortion.- 3.1. Band folding and splitting.- 3.2. First-order Peierls distortion.- 3.3. Second-order Peierls distortion.- 4. Low-dimensional solids.- 4.1. Structures derived from ML6 octahedra.- 4.2. Structures derived from ML6 trigonal prisms.- 4.3. Structures derived from ML8 tetragonal antiprisms.- 5. Concluding remarks.- Structural Studies of Phase Transitions in One-Dimensional Conductors.- 1. General aspects of phase transitions in condensed matter.- 1.1. Thermodynamic classification.- 1.2. Symmetry and order parameter.- 1.3. Elements of the phenomenological Landau theory.- 1.4. Fluctuations and correlations.- 2. Peierls instability of a one-dimensional metal.- 2.1. 2kF instability of a one-dimensional electron gas.- 2.2. Charge density waves, incommensurability.- 2.3. Precursor effects, Kohn anomaly.- 2.4. Interchain couplings.- 2.5. Beyond the independent electron picture and the mean-field treatment.- 3. Representative structural studies of one-dimensional conductors.- 3.1. Peierls transitions.- 3.2. Anion ordering transitions in the TMTS(T)F2X series.- 4. Concluding remarks.- Charge Density Wave Instability and Nonlinear Transport in the Quasi-One-Dimensional Blue Bronzes K0.30MoO3 and Rb0.30MoO3.- 1. Introduction.- 2. Structural aspects.- 3. Ohmic transport.- 4. Optical properties.- 5. Specific heat and lattice dynamics.- 6. Magnetic properties.- 7. Band structure and the Peierls transition.- 8. Nonlinear transport and related properties.- 8.1. Threshold electric field.- 8.2. High-frequency voltage oscillations.- 8.3. Frequency-dependent conductivity.- 8.4. Very low fequency phenomena.- 8.5. Other metastability phenomena.- 8.6. X-ray studies under electric field.- 8.7. Effects of irradiation on the nonlinear properties.- 8.8. Comparison between K0.30MoO3 and Rb0.30MoO3.- 8.9. Discussion.- 9. Conclusion.- New Transition Metal Halides and Oxides with Extended Metal-Metal Bonding.- 1. Introduction.- 2. Background.- 3. Infinite metal chains.- 3.1. Zig-zag chains and fused rhomboids.- 3.2. Chains of octahedra.- 3.3. Distortions in chains.- 3.4. Interstitial atoms in chains.- 4. Related sheet structures.- 5. General correlations.- 5.1. The metals and nonmetals involved.- 5.2. Bonding and bond orders.- 5.3. Interstitial atoms.- 5.4. Other electronic factors.- 6. Outlook.- Pseudo-One-Dimensional MX3 and MX4 Transition Metal Chalcogenides.- 1. Trichalcogenides of iva, va, and via elements.- 1.1. ZrSe3 structural type.- 1.2. TaSe3 structural type.- 1.3. NbSe3 structural type.- 1.4. Amorphous MX3 chalcogenides.- 1.5. Intercalation in trichalcogenides.- 2. FeNb3Se10: a new structural type.- 3. Tetrachalcogenides and related compounds.- 3.1. VS4 structural type.- 3.2. NbTe4 structural type.- 3.3. (NbSe4)3I structural type.- 4. Nb2Se9 and pentachalcogenides.- 4.1. Nb2Se9.- 4.2. Pentachalcogenides of group iva elements.- 5. Discussion and concluding remarks.- Pentachalcogenides of Transition Metals.- 1. Introduction.- 2. Preparation.- 3. Crystal structure.- 3.1. Basic structure.- 3.2. Structure modulation and polytype.- 4. Transport properties and related phenomena.- 4.1. Electrical resistivity.- 4.2. Hall effect.- 4.3. Thermoelectric power.- 4.4. Mechanism of transport anomalies.- 5. Band structure and Fermi surface.- 5.1. Band structure calculation.- 5.2. Schubnikov de Haas effect.- 6. Magnetic susceptibility.- 7. Raman scattering.- 8. Elastic anomaly and specific heat.- 8.1. Elastic anomaly.- 8.2. Specific heat.- 9. Pressure effect.- 10. Mixed systems.- From Three-Dimensional to One-Dimensional Cluster Mo6 Chalcogenides.- 1. Introduction.- 2. Principle of the cluster condensation in ternary Mo-chalcogenides.- 3. Metal-metal bonding approach in the Mo-cluster compounds.- 4. New Ternary Mo-Chalcogenides with discrete Mo6n clusters (n finite).- 4.1. Co-crystallization of Mo9X11 and Mo12X14 units with Mo6X8 units.- 4.2. Crystallization of only condensed units: Mo6nX6n + 2 units.- 5. Electronic properties and bond order.- 5.1. Theoretical electronic properties.- 5.2. Bond order.- 5.3. Electronic physical properties.- 6. New pseudo-one-dimensional $$({rm Mo}_{6/2}{rm X}_{6/2})_{infty}^{1}$$ infinite chain.- 6.1. Preparation.- 6.2. Structural description.- 6.3. Physical properties.- 7. Conclusion.- Index of Formulas.- Index of Names.- Index of Subjects.