ISSN:
1573-1111
Keywords:
Benzo-15-crown-5
;
charge-separated sandwich
;
rubidium
;
X-ray diffraction analysis
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The complex Rb(B15C5)2NO3·H2O is monoclinic,P21/c,a=12.695(3),b=19.471(3),c=12.991(2)Å, β=99.60(2)o,V=3166 Å3,D c =1.473 g/cm3 (163 K),D c =1.434 g/cm3 (298 K),D o =1.44 g/cm3 (298 K),T=163K,Z=4, MoKαλ=0.71069 Å, 2θ(4o–53o), μ=16.43 cm−1,F(000)=1424. FinalR for the 4588 observed reflections (F〉3σ) is 0.062. All ten oxygens of the two benzo-crowns are shown to coordinate to the rubidium ion (Rb...O,2.92 to 3.07 Å) forming a charge-separated sandwich. The nearest nitrate oxygen is displaced 6.51 Å from the rubidium ion and is hydrogen bonded to a water molecule.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00662082
