Coordinated solids

Rodgers, G. E. Introduction to Coordination, Solid State, and Descriptive Inorganic Chemistry , McGraw-Hill New York, 1994, p. 101. 

Fig. 6-3S. Potential energy curves for water adsorption on metal surface in the states of molecules and hydrozjd radicals c = energy r = reaction coordinate solid curve = adsorption as water molecules and as partially dissociated hydroxj4 and hydrogen radicals broken curve = adsorption of completely dissociated oxygen and hydrogen radicals.

Figure 4, Ground state spectra of the four-coordinate form of 1-ET and 1-ET-CO 6-coordinate (solid) and 4-coordinate (dotted),...

Figure 5.11 Projection of the Sw2 reaction coordinate (solid line). The transition state is indicated by in this example it is symmetric with respect to N--C bond making and C X bond breaking (Structure 29). Energy minima are designated by o. The motions are as follows ...

Owing to their larger size, coordination solids incorporating cluster cores in place of individual metal centers can be expected to have an expanded framework structure. This is of particular interest for 3D solids, wherein the expansion could produce a highly porous framework with host-guest properties similar to those of zeolites. 

Al, Ga and In form tetrahedrally coordinated solids with elements of group 15, which are part of the series of III-V semi-conductor (i.e., groups 13-15). The mixed compounds gallium aluminium phosphides Ga r AljP and the arsenide Gaj r AljAs are used for light-emitting diode (LED) displays and semiconductor lasers. 

OSO3F2 is a monomer in the gas phase, to which a monomeric D31, structure has been assigned. EXAFS and X-ray diffraction measurements show a 6-coordinate solid-state structure with cw-fluorine bridges (Figure 1.3) (0s=0 1.678-1.727 A, Os-F 1.879A (terminal), 2.108-2.126A (bridge)). 

Figure 3.13 The crystal structure of [Tb2(BDC)3-(H20)4] shown approximately down the crystallographic b-axis, where aqua ligands are found to point toward the center of the ID-channels (Tb, black O, grey C, white H, omitted). (Redrawn from the GIF file of T.M. Reineke et al, From condensed lanthanide coordination solids to microporous frameworks having accessible metal sites, Journal of the American Chemical Society, 121, 1651-1657, 1999 [72].)...

The techniques to follow aggregation of amyloidogenic proteins and to determine their molecular conformation range from spectrometric assays (thiohavin T, Congo red) over spectroscopic assays (FTIR and CD) and visualization techniques (AFM and TEM) to methods that provide detailed insight into the atomic coordinates (solid-state NMR and X-ray diffraction). 

Figure 2 FVee energy profiles [Eqs. (11)] in acetonitrile as functions of the reaction coordinate. Solid lines P —> Si transition dashed lines P — Sh transition. and t)...

Coordination Solids concentration Pore volume number vol% wt% mLg-1... 

Fig. 8.4. Diagram showing the adherence of 78 nickel complexes to the Berry coordinate (solid line). The origin represents a TBP, the upper right end of the coordinate a SQP...

Fig. 8.8. Scatterplot of 6 versus b for 158 complexes, and theoretical coordinate (solid line) for the Bailar mechanism joining the octahedron 6 = 30°, b = 2) with the trigonal prism 6 = 0°). The parameters 6 and b are described in the text...

Metal Organic Frameworks Porous Coordination Solids), 21A... 

Figure 5.24 Computer-generated catalyst bed and its radial porosity distribution function averaged over axial coordinate (solid line). Mean bed porosity f = 0.47 (dashed line), aspect ratios di/dp = 3.9, L/dp = 18.5, r/R = 1 corresponds to the inner wall of the membrane.

Yoon JW, Jhung SH, Hwang YK et al (2007) Gas-sorption selectivity of CUK-1 a porous coordination solid made of cobalt(ll) and pyridine-2,4- dicarboxyUc acid. Adv Mater 19 1830-1834... 

FIGURE 1.8 Effect of solvation on activation energy. Potential energy V versus the reaction coordinate. Solid curves represent the energy profile in the absence of solvation, (a) Solvation of the reactant (increased activation energy), (b) Solvation of the activated complex (reduced activation energy). 

---