Signaling Recognition Events with Fluorescent Sensors and Switches.

The development in the field of coordination polymers or metal-organic coordination networks, MOCNs (metal-organic frameworks, MOFs) is assessed in terms of property investigations in the areas of catalysis, chirality, conductivity, luminescence, magnetism, spin-transition (spin-crossover), non-linear optics (NLO) and porosity or zeolitic behavior upon which potential applications could be based.

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Engineering coordination polymers towards applications

3.2. Thienothiophenes 1216 3.2.1. Thieno[3,4-b]thiophene Analogues 1216 3.2.2. Thieno[3,2-b]thiophene Analogues 1217 3.2.3. Thieno[2,3-b]thiophene Analogues 1218 3.3. , ′-Bridged Bithiophenes 1219 3.3.1. Dithienothiophene (DTT) Analogues 1220 3.3.2. Dithieno[3,2-b:2′3′-d]thiophene-4,4-dioxides 1221 3.3.3. Dithienosilole (DTS) Analogues 1221 3.3.4. Cyclopentadithiophene (CPDT) Analogues 1221 3.3.5. Nitrogen and Phosphor Atom Bridged Bithiophenes 1222

Functional oligothiophenes: molecular design for multidimensional nanoarchitectures and their applications.

Perylene Bisimide Dye Assemblies as Archetype Functional Supramolecular Materials

The occurrence of interpenetration in metal–organic and inorganic networks has been investigated by a systematic analysis of the CSD and ICSD structural databases. For this purpose, a novel version of TOPOS (a program package for multipurpose crystallochemical analysis) has been employed, where the procedure of recognition of interpenetrating nets is based on the representation of a crystal structure as a finite reduced graph. In this paper we report a comprehensive list (301 Refcodes) of interpenetrating metal–organic 3D structures from CSD, that are analyzed on the basis of their topologies. Interesting trends and novel features have been observed and distinct classes of interpenetrating nets have been envisaged, depending on the relationships of the individual motifs.

Interpenetrating metal–organic and inorganic 3D networks: a computer-aided systematic investigation. Part I. Analysis of the Cambridge structural database

1 Introduction. 1.1 What are Organic Solids? 1.2 What are the Special Characteristics of Organic Solids? 1.3 Goals and Future Outlook. Problems for Chapter 1. Literature. 2 Forces and Structures. 2.1 Forces. 2.1.1 Inductive Forces. 2.1.2 Van der Waals Forces. 2.1.3 Repulsive Forces. 2.1.4 Intermolecular Potentials. 2.1.5 Coulomb Forces. 2.2 Structures. 2.2.1 Crystals of Nonpolar Molecules. 2.2.2 Crystals of Molecules with Polar Substituents. 2.2.3 Crystals with a Low Packing Density, Clathrates. 2.2.4 Crystals of Molecules with Charge Transfer, Radical-ion Salts. 2.3 Polymer Single Crystals: Diacetylenes. 2.4 Thin Films. 2.5 Inorganic-Organic Hybrid Crystals. Problems for Chapter 2. Literature. 3 Purification of Materials, Crystal Growth and Preparation of Thin Films. 3.1 Purification. 3.2 Highest Purity. 3.3 Crystal Growth. 3.4 Mixed Crystals. 3.5 Epitaxy, Ultrathin Films. Problems for Chapter 3. References. 4 Impurities and Defects. 4.1 Foreign Molecules, Impurities, and X traps. 4.2 Structural Defects. 4.2.1 Point Defects. 4.2.2 Dislocations. 4.2.3 Grain Boundaries. 4.2.4 Dipolar Disorder. 4.3 Characterisation and Analysis of Impurities. 4.4 Characterisation of Defects. Literature. 5 Molecular and Lattice Dynamics in Organic Molecular Crystals. 5.1 Introduction. 5.2 Intramolecular Vibrations. 5.3 Phonons. 5.3.1 The Eigenvector. 5.3.2 The Wavevector. 5.3.3 The Frequencies (K). 5.3.4 Excitations. 5.4 Experimental Methods. 5.4.1 Inelastic Neutron Scattering. 5.4.2 Raman Scattering and Infrared Absorption. 5.5 The 12 External Phonons of the Naphthalene Crystal. 5.5.1 Dispersion relations. 5.5.2 Pressure and Temperature Dependencies. 5.6 Analytic Formulation of the Lattice Dynamics in Molecular Crystals. 5.7 Phonons in other Molecular Crystals. 5.8 Hindered Rotation and Diffusion. 5.8.1 Nuclear Magnetic Resonance. 5.8.2 Benzene Crystals. 5.8.3 Methyl Groups. 5.8.4 Diffusion. Problems for Chapter 5. References. 6 Electronic Excited States, Excitons, Energy Transfer. 6.1 Introduction. 6.2 Some historical remarks. 6.3 Optical Excited States in Crystals. 6.4 Davydov Splitting and Mini-Excitons. 6.5 Frenkel Excitons. 6.5.1 Excitonic States, Fundamental Equations. 6.5.2 Polarisation and Band Structure. 6.5.3 Coherence. 6.6 Charge Transfer (CT) Excitons. 6.7 Surface Excitons. 6.8 Excimers. 6.9 Exciton Processes, Energy Conduction. 6.9.1 Sensitised Fluorescence. 6.9.2 Delayed Fluorescence by Triplet Excitons. 6.9.3 Excitonic Processes. 6.10 Excitonic Processes in other Systems. 6.11 Future Developments. Problems for Chapter 6. Literature. 7 Structure and Dynamics of Triplet States. 7.1 Introduction and Historical Remarks. 7.2 Spin Quantisation in Triplet States. 7.3 The Dipole-Dipole Interaction, Fine Structure. 7.3.1 Zero Field (B0 = 0). 7.3.2 Zeeman Splitting (B0 = 0). 7.3.3 Powder Spectra. 7.4 Mini-Excitons. 7.5 Triplet Excitons. 7.5.1 Anthracene and Naphthalene Crystals: Two-dimensional Triplet Excitons. 7.5.2 Dibromonaphthalene Crystals: coherent, one-dimensional Triplet Excitons. 7.6 Optical Spin Polarisation (OEP). 7.7 Optical Nuclear-Spin Polarisation (ONP). 7.8 Perspectives. Problems for Chapter 7 Literature. 8 Organic Semiconductors. 8.1 Preliminary Historical Remarks. 8.2 Conductivity and Mobility of nearly-free Charge Carriers. 8.3 Charge Carriers in Organic Semiconductors: Polarons, Shallow Traps and Deep Traps. 8.4 Generation of Charge Carriers and Charge Transport: Experimental Methods. 8.4.1 The TOF Method: Gaussian Transport. 8.4.2 Photogeneration of Charge Carriers. 8.4.3 Contacts, Injection, Ejection, and Dark Currents. 8.4.4 Space-Charge Limited Currents. 8.5 Charge-Carrier Mobilities in Organic Molecular Crystals. 8.5.1 Band- or Hopping Conductivity? 8.5.2 Temperature Dependence and Anisotropy of the Mobilities. 8.5.3 Electric-field Dependence. 8.5.4 Band Structures. 8.5.5 Charge-Carrier Traps. 8.6 Charge Transport in Disordered Organic Semiconductors. 8.6.1 The Bassler Model. 8.6.2 Mobilities in High-Purity Films: Temperature, Electric-Field, and Time Dependence. 8.6.3 Binary Systems. 8.6.4 Discotic Liquid Crystals. 8.6.5 Stationary Dark Currents. Problems for Chapter 8. Literature. 9 Organic Crystals of High Conductivity. 9.1 Donor-Acceptor Systems. 9.2 Strong CT Complexes, Radical-ion Salts. 9.3 The Organic Metal TTF-TCNQ - Peierls Transition and Charge-Density Waves. 9.4 Other Radical-ion Salts and CT Complexes. 9.5 Radical-Anion Salts of DCNQI. 9.6 Radical-Cation Salts of the Arenes. 9.6.1 Direct-current Conductivity. 9.6.2 X-Ray Scattering. 9.6.3 Optical Reflection Spectrum. 9.6.4 Magnetic Susceptibility. 9.6.5 Spin Resonance of the Conduction Electrons (ESR). 9.6.6 Charge-Density-Wave Transport. Problems for Chapter 9. Literature. 10 Organic Superconductors. 10.1 Introduction. 10.2 Mainly One-dimensional Charge-Transfer Salts as Superconductors Bechgaard Salts. 10.3 Quasi-Two-dimensional Charge-Transfer Systems as Superconductors. 10.4 The Nature of the Superconducting State in Organic Salts. 10.5 Three-dimensional Superconductivity in Fullerene Compounds. Literature. 11 Electroluminescence and the Photovoltaic Effect. 11.1 Electroluminescence: Organic Light-Emitting Diodes (OLEDs). 11.1.1 Historical Remarks. 11.1.2 The Principle of the OLED. 11.1.3 Multilayer OLEDs. 11.1.4 Electro-optical Properties. 11.2 Photovoltaic Effect: Organic Photovoltaic Cells. 11.2.1 Exciton Dissociation. 11.2.2 Photovoltaic Characteristics. 11.2.3 CuPc/C60 Solar Cells. Literature. 12 Towards a Molecular Electronics. 12.1 What is Molecular Electronics and What Will it Do? 12.2 Molecules as Switches, Photochromic Effects. 12.3 Molecular Wires. 12.4 Light-Induced Phase Transitions. 12.5 Molecular Rectifiers. 12.6 Molecular Transistors. 12.7 Molecular Storage Units. Appendix: Coloured Plates. Index.

Organic Molecular Solids

Although (R 1 ,R 3 -DCNQI) 2 Cu salts (I) are isomorphic (space group I4 1 /a), they behave differently upon cooling: The group M salts remain metallic down to the lowest temperatures, whereas the group M-I salts show phase transitions to semiconductors at temperatures T M-1 =160-230 K. With regard to the steric requirements of the methyl group, 1a (CH 3 /CH 3 /H 2 ) is expected to belong to group M-I, but it remains metallic even at 0.4 K (σ=500 000 S cm -1 )

The organic metal (Me2-DCNQI)2Cu: Dramatic changes in solid-state properties and crystal structure due to secondary deuterium effects

Molecular physics and elements of quantum chemistry

Fulgides as switches for intramolecular energy transfer

In the new trichromophoric supermolecule 1, a quantitative intramolecular energy transfer (>98 %) occurs from the anthracene donor to the emitting porphyrin acceptor through the oligothiophene chain after selective UV excitation of anthracene. Energy-transfer properties and fluorescence quantum yields are independent of the oligothiophene chain length. Attachment of further anthrylquinquethienyl chromophores to the porphyrin ring results in an increase in the intensity of characteristic absorption and fluorescence bands.

Hans Christoph Wolf

Papers

Organic Molecular Solids

The organic metal (Me2-DCNQI)2Cu: Dramatic changes in solid-state properties and crystal structure due to secondary deuterium effects

Molecular physics and elements of quantum chemistry

Fulgides as switches for intramolecular energy transfer

Anthryloligothienylporphyrins : energy transfer and light-harvesting systems