Crystalline inclusion compounds of new elongated bisfluorenol hosts with protic guest molecules

CrystEngComm ◽  
2013 ◽  
Vol 15 (3) ◽  
pp. 586-596 ◽  
Author(s):  
Henrik Klien ◽  
Wilhelm Seichter ◽  
Edwin Weber
Keyword(s):  
Inclusion Compounds ◽  
Crystalline Inclusion ◽  
Guest Molecules ◽  
Crystalline Inclusion Compounds

A Tetrachloro Guest in a Molecular Box

1996 ◽  
Vol 49 (3) ◽  
pp. 337 ◽  
Author(s):  
CE Marjo ◽  
R Bishop ◽  
DC Craig ◽  
ML Scudder
Keyword(s):  
Crystal Structure ◽  
Inclusion Compounds ◽  
Guest Molecule ◽  
Intermolecular Forces ◽  
Crystalline Inclusion ◽  
Aromatic Rings ◽  
Fixed Position ◽  
Guest Molecules ◽  
Crystalline Inclusion Compounds ◽  
Inclusion Structure

The new lattice inclusion host exo-7,exo-15-dibromo-6,7,14,15-tetrahydro-6,14-methanocycloocta[1,2-b:5,6-b'] diquinoxaline (6) has been synthesized in three steps from bicyclo [3.3.1]nonane-2,6-dione and benzofurazan oxide. It preferentially forms crystalline inclusion compounds with small polyhaloalkane guest molecules, and the crystal structure of the 1,1,2,2-tetrachloroethane compound [(C21H14N4Br2)2.C2H2Cl4, Pbcn , a 11.663(2), b 13.195(3), c 27.444(5) Ǻ, Z 4, R 0.041] is described. The key characteristic of this compound is a series of molecular boxes in which the guest molecules reside. Construction of the six surrounding walls is achieved with the aromatic rings of just four host molecules, and the guest molecule occupies a fixed position within the box. The intermolecular forces resulting in formation of this novel inclusion structure are analysed in detail.

scholarly journals Crystalline Inclusion Compounds of a Palladacyclic Tetraol Host Featuringo-Carborane Units

2017 ◽  
Vol 2017 (38-39) ◽  
pp. 4589-4598 ◽  
Author(s):  
Min Ying Tsang ◽  
Clara Viñas ◽  
Francesc Teixidor ◽  
Duane Choquesillo-Lazarte ◽  
José Giner Planas
Keyword(s):  
Inclusion Compounds ◽  
Crystalline Inclusion ◽  
Crystalline Inclusion Compounds

scholarly journals Synthesis and crystal structure of 2,4,6,8-tetrakis(3,5-di-tert-butylphenoxy)pyrimido[5,4-d]pyrimidine: expansion of the Piedfort concept

2019 ◽  
Vol 75 (3) ◽  
pp. 383-387 ◽  
Author(s):  
James H. Gall ◽  
David D. MacNicol ◽  
Ross MacSween ◽  
Christopher S. Frampton
Keyword(s):  
Monoclinic Space Group ◽  
Crystalline Inclusion ◽  
Guest Molecules ◽  
Synthesis And Crystal Structure ◽  
Crystalline Inclusion Compounds ◽  
X Ray ◽  
Compound C ◽  
Host Compound ◽  
Staggered Arrangement ◽  
New Type

The title host compound, C62H84N4O4, designed to self-assemble to form a new type of extended core Piedfort unit reminiscent of an eight-legged spider host, forms a number of crystalline inclusion compounds favouring oxygen-containing guest molecules. We have established the presence of this unit in the unsolvated molecular crystal at 100 K, which is monoclinic, space group P21/n, with Z = 8. The new Piedfort unit is chiral and its core structure closely approximates to D 2 symmetry, with both enantiomers present in the crystal. Rather than being superposed with a staggered arrangement of nitrogen atoms, the rings are rotated by an angle of approximately 45° with respect to each other, and the shortest contact between them is 3.181 (2) Å. The compound's significant inclusion properties may be taken to suggest the participation of an extended Piedfort unit in the microcrystalline adducts formed. The presence of such a dimeric host unit in the clathrates has, however, not yet been established because of the current lack of suitable single crystals for X-ray analysis.

Formation of crystalline inclusion compounds of poly (vinyl chloride) of different stereoregularity with γ-cyclodextrin

2007 ◽  
Vol 45 (12) ◽  
pp. 2503-2513 ◽  
Author(s):  
Gerardo Martínez ◽  
Marián A. Gómez ◽  
Silvia Villar-Rodil ◽  
Leoncio Garrido ◽  
Alan E. Tonelli ◽  
...  
Keyword(s):  
Vinyl Chloride ◽  
Inclusion Compounds ◽  
Crystalline Inclusion ◽  
Crystalline Inclusion Compounds ◽  
Poly Vinyl Chloride
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