Crystal structures of four inclusion compounds of 4,4’-dihydroxy diphenyl sulfide and tetraalkylammonium

2021 ◽  
pp. 1-11
Author(s):  
Min Xu ◽  
Yun-xia Yang ◽  
Ying-wa Guo ◽  
Xiao-na Ma
Keyword(s):  
Crystal Structures ◽  
Inclusion Compounds ◽  
Diphenyl Sulfide

New Exo-Functional Cyclophane Hosts. Synthesis and Crystal Structures of Inclusion Compounds

2006 ◽  
Vol 18 (4) ◽  
pp. 333-348 ◽  
Author(s):  
Romy Golbs ◽  
Wilhelm Seichter ◽  
Edwin Weber ◽  
Ingeborg Csöregh
Keyword(s):  
Crystal Structures ◽  
Inclusion Compounds

Structures and Photochemistry of Inclusion Compounds of 9,10-Dihydro-9,10-ethenoanthracene-11,12-bis(diphenylphosphine Oxide)

1997 ◽  
Vol 53 (2) ◽  
pp. 293-299 ◽  
Author(s):  
T. Y. Fu ◽  
Z. Liu ◽  
G. Olovsson ◽  
J. R. Scheffer ◽  
J. Trotter
Keyword(s):  
Solid State ◽  
Single Crystals ◽  
Crystal Structures ◽  
Inclusion Compounds ◽  
Enantiomeric Excess ◽  
Structural Features ◽  
Host Molecule ◽  
Diphenylphosphine Oxide ◽  
Solvent Molecules

Inclusion complexes of 9,10-dihydro-9,10-etheno-anthracene-11,12-bis(diphenylphosphine oxide) (1) as host are synthesized using a variety of guest solvent molecules and the photochemistry of the host molecule is studied in solution and in the crystalline complexes. The crystal structures of four complexes are determined and correlated with their photochemical reactivity. In each case only one dibenzosemibullvalene photoproduct is obtained in the photolysis. Since three of the complexes studied crystallize in the chiral space group P212121, irradiation of single crystals produces a chiral photoproduct in >90% enantiomeric excess. Determination of the absolute configurations of reactants and products allows elucidation of the key structural features that control the enantiospecific solid-state photorearrangements.

Solvent–guest control of two extremely similar tetrahydrofuran inclusion structures

2014 ◽  
Vol 70 (1) ◽  
pp. 126-131 ◽  
Author(s):  
Jiabin Gao ◽  
Mohan M. Bhadbhade ◽  
Roger Bishop
Keyword(s):  
Crystal Structures ◽  
Inclusion Compounds ◽  
Crystal Form ◽  
Solvent Free ◽  
Guest Molecules ◽  
Crystal Forms ◽  
X Ray

Racemic 2,4,6,8-tetracarbomethoxybicyclo[3.3.0]octa-2,6-diene-3,7-diol, C16H18O10(1), was known previously to yield two solvent-free polymorphs and also a clathrate inclusion crystal form. Crystallization of (1) yields two inclusion compounds containing tetrahydrofuran (THF): (1)4·THF is obtained from a mixture of THF and methanol, whereas (1)2·THF is obtained from pure THF. The X-ray crystal structures reveal that the two compounds are extremely similar and that their host arrangements are essentially identical. They differ, however, in the proportion, orientation and host–guest interaction of the included THF molecules. The disordered guest molecules in (1)4·THF are oriented along the guest channel direction, whereas in (1)2·THF they lie across the channel. This unusual solvent–guest control of inclusion structures has implications relating to the formation of polymorphic structures and other competing crystal forms.

Anthracene Based Bulky Diol Hosts. Crystal Structures of a Free Host and of Inclusion Compounds with Dipolar Guests

2003 ◽  
Vol 47 (3/4) ◽  
pp. 113-121 ◽  
Author(s):  
Ingeborg Csöregh ◽  
Thomas Brehmer ◽  
Silke I. Nitsche ◽  
Wilhelm Seichter ◽  
Edwin Weber
Keyword(s):  
Crystal Structures ◽  
Inclusion Compounds
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