By Gautam R. Desiraju
New purposes and layout procedures in crystal engineering are defined within the 9 papers of this quantity, which have been written via teams of chemists and engineers within the US, Canada, the united kingdom, Japan, France, Switzerland, Italy, and the Netherlands. The bankruptcy titles comprise: purposes to crystal layout of hydrogen bonds in inorganic chemistry, molecular reputation and self-assembly among amines and alcohols, very huge supramolecular tablets in keeping with hydrogen bonding, crystal alterations and gas-solid reactions, and solid-gas interactions among small gaseous molecules and transition metals within the good country. every one paper good points the authors' personal learn and comprises an exhaustive bibliography. The papers are good illustrated with b&w and a few colour plates.
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Extra info for Crystal Design: Structure and Function
O±H Á Á Á OC±M and N±H Á Á Á OC±M, such interactions are relatively uncommon. The principal reason is that the carbonyl oxygen is a reasonably weak acceptor and strong donors tend to form interactions with stronger acceptors where possible. However, the predominance in organometallic crystals of carbonyl ligands and of ligands with acidic C±H groups leads to an abundance of C±H Á Á Á OC±M hydrogen bonds, which are of tremendous overall importance in organometallic crystal engineering (see Section 5).
Both contain one-dimensional networks propagated via R22 (8) synthons between amide groups which trans ligands interact (cf. XIII). In [Pt(L)4 ](PF6 )2 the remaining two amide groups provide cross-linking via R44 (16) hydrogen-bonded rings involving amide groups from four different cations. In [Pt(L)4 ]Cl2 Á 4L, two sets of one-dimensional chains involving R22 (8) amide±amide synthons run in roughly orthogonal directions and are linked by an extensive network of hydrogen bonds involving the remaining amide groups of the coordinated ligands, the isonicotinamide guest molecules and Hydrogen Bonds: Application to Crystal Design 27 Figure 19 Distorted two-dimensional (4,4) network in trans-[Ni(L)4 (OH2 )2 ]Br2 Á 2L (L pyridine-4-aldoxime), propagated by oxime±oxime O±H Á Á Á O hydrogen bonds (cf.
However, dinuclear and polynuclear building blocks are also amenable to this type of inorganic crystal engineering. Thus, 34 Crystal Design: Structure and Function Figure 26 Hydrogen-bonded grid in [aqua(5,10,15,20-tetrakis(4-carboxyphenyl)porphyriÊ . Oxygen, nitrogen and key nato)zinc (II)]Á4C6 H5 NO2 [67b]. 2 A hydrogen atoms are shaded; coordinated water and disordered nitrobenzene solvate not shown. Puddephatt and co-workers [44b] and Rendina and co-workers  each prepared dinuclear systems in which square-planar Pt(II) centres are bridged by a 4, 4H -bipyridine ligand and each metal then carries a ligand with a functional group capable of self-recognition via hydrogen bonding, namely carboxyl and amide groups, respectively.