Hydrogen-bonded urea-anion host lattices. Part 2. Crystal structures of inclusion compounds of urea with tetraalkylammonium bicarbonates

1995 ◽  
Vol 23 (3) ◽  
pp. 233-244 ◽  
Author(s):  
Qi Li ◽  
Wai Hing Yip ◽  
Thomas C. W. Mak
Keyword(s):  
Crystal Structures ◽  
Inclusion Compounds ◽  
Host Lattices ◽  
Hydrogen Bonded

Composite host lattices of 4,4′-sulfonyldibenzoate water/boric acid in two tetrapropylammonium inclusion compounds

2018 ◽  
Vol 74 (9) ◽  
pp. 1026-1031
Author(s):  
Xiangxiang Wu ◽  
Huahui Zeng ◽  
Yunxia Yang
Keyword(s):  
Boric Acid ◽  
Small Molecules ◽  
Crystal Structures ◽  
Inclusion Compounds ◽  
X Ray Diffraction ◽  
X Ray ◽  
Counter Ions ◽  
Proton Donors ◽  
The Difference ◽  
Host Lattices

Two novel inclusion compounds of 4,4′-sulfonyldibenzoate anions and tetrapropylammonium cations with different ancillary molecules of water and boric acid, namely bis(tetrapropylammonium) 4,4′-sulfonyldibenzoate dihydrate, 2C12H28N+·C14H8O6S2−·H2O (1), and bis(tetrapropylammonium) 4,4′-sulfonyldibenzoate bis(boric acid), 2C12H28N+·C14H8O6S2−·2H3BO3 (2), were prepared and characterized using single-crystal X-ray diffraction. In the two salts, the host 4,4′-sulfonyldibenzoic acid molecules, which are converted to the corresponding anions under basic conditions, can be regarded as proton acceptors which link different proton donors of the ancillary molecules of water or boric acid. In this way, an isolated hydrogen-bonded tetramer is constructed in salt 1 and a ribbon is constructed in salt 2. The tetramers and ribbons are then packed in a repeating manner to generate various host frameworks, and the tetrapropylammonium guest counter-ions are contained in the cavities of the host lattices to give the final stable crystal structures. In these two salts, although the host anion and guest cation are the same, the difference in the ancillary small molecules results in different structures, indicating the significance of ancillary molecules in the formation of crystal structures.

Wechselwirkungen in Molekülkristallen, 153 [1 - 3]. Wirt/Gast-Einschlußverbindungen von N,N'-Ditosyl-p-phenylendiamin-Derivaten: Die Kristallstrukturen von N,N'-Di(4-ethyl-benzosulfuryl)-p-phenylendiamin und seinen Aggregaten mit Aceton und Cyclopentanon / Interactions in Molecular Crystals, 153 [1 - 3]. Host/Guest-Inclusion Compounds of N,N'-Ditosyl-p-phenylenediamine Derivatives: The Crystal Structures of N,N'-Di(4-ethyl-benzosulfuryl)-p-phenylenediamine and its Aggregates with Acetone and Cyclopentanone

1999 ◽  
Vol 54 (4) ◽  
pp. 491-500 ◽  
Author(s):  
Hans Bock ◽  
Norbert Nagel ◽  
Peter Eller
Keyword(s):  
Crystal Structures ◽  
Conformational Change ◽  
Enthalpy Of Formation ◽  
Inclusion Compounds ◽  
Crystal Packing ◽  
Molecular Crystals ◽  
Host Lattice ◽  
Guest Molecules ◽  
Starting Point ◽  
Hydrogen Bonded

A class of novel inclusion compounds based on the hydrogen-bonded host lattice of N,N′- ditosyl-p-phenylenediamine is the starting point for the investigation of derivatives such as N,N′- di(4-ethyl-benzosulfuryl)-p-phenylenediamine. Structures of both the guest-free compound and of its clathrates with acetone as well as cyclopentanone suggest a considerable enthalpy of formation contribution from the conformational change of the sulfonamide backbone on adaption of the guest molecules. The host channels of the N,N′-ditosyl-p-phenylenediamine inclusion compounds are compared to those of the ethyl derivative elongated by two H2C substituent units, and the crystal packing in its cyclopentanone clathrate with an unexpected type of bulged channels is emphasized.

Crystal Structures and Magnetic Properties of Hydrogen-Bonded Nitronyl Nitroxide Radicals and Their Metal Complexes

2002 ◽  
Vol 379 (1) ◽  
pp. 153-158 ◽  
Author(s):  
Mikio Ueda ◽  
Tomoyuki Mochida ◽  
Sachie Furukawa ◽  
Hideaki Suzuki ◽  
Hirosi Moriyama ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Metal Complexes ◽  
Crystal Structures ◽  
Nitronyl Nitroxide ◽  
Nitroxide Radicals ◽  
Hydrogen Bonded

Synthesis and X-ray crystal structures of dinuclear hydrogen-bonded cadmium and lead 2-aminoethanethiolates

Polyhedron ◽  
2005 ◽  
Vol 24 (8) ◽  
pp. 865-871 ◽  
Author(s):  
Mohan S. Bharara ◽  
Chong H. Kim ◽  
Sean Parkin ◽  
David A. Atwood
Keyword(s):  
Crystal Structures ◽  
X Ray ◽  
Cadmium And Lead ◽  
Hydrogen Bonded
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