Different co-ordination behaviour of 1,2-diaminoethane (en) and tetracyanonickelate(II) upon accommodation of polar guest molecules in their metal complex hosts: crystal structures of [M(en)2Ni(CN)4]·2PhNH2(M = Ni, Cu, Zn or Cd) and [{Cd(en)}2(en){Ni(CN)4}2]·4PhOH

1994 ◽  
pp. 1237-1242 ◽  
Author(s):  
Hidetaka Yuge ◽  
Toschitake Iwamoto
Keyword(s):  
Metal Complex ◽  
Crystal Structures ◽  
Guest Molecules

Novel isomorphism of two hexagonal non-centrosymmetric hybrid crystals of M(en)3Ag2I4 (M = transition metal Mn2+ or main-group metal Mg2+; en = ethylenediamine)

CrystEngComm ◽  
2018 ◽  
Vol 20 (3) ◽  
pp. 356-361 ◽  
Author(s):  
Xin Chen ◽  
Zhi-Yuan Yao ◽  
Chen Xue ◽  
Zhu-Xi Yang ◽  
Jian-Lan Liu ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Complex ◽  
Metal Complexes ◽  
Crystal Structures ◽  
Main Group ◽  
Group Metal ◽  
Main Group Metal ◽  
Hybrid Crystals ◽  
First Time

For the first time, a main-group metal complex is used as a template for the formation of hybrid crystal structures and isomorphic hybrid crystals are obtained using transition and main-group metal complexes.

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.

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