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Synthesis and Crystal Structure of a Caesium Hydrogen Benzoylcyanoximate Complex with 18-Crown-6: Cs(18-Crown-6){H(L)2}
| Content Provider | Semantic Scholar |
|---|---|
| Author | Ponomareva, Vera V. Skopenko, Victor V. Domasevitch, Konstantin V. Sieler, Joachim Gelbrich, Thomas |
| Copyright Year | 1997 |
| Abstract | Abstract The caesium hydrogen benzoylcyanoximate (L-) complex with 18-crown-6 of composition Cs(18-crown-6){H(L)2} has been prepared and studied by means of X-ray diffraction [monoclinic, space group P21/n, with a = 9.906(1), b = 18.387(3), c = 18.855(3)Å, β = 90.13(1)°, V = 3434.3(9) Å, Z = 4; final R1 = 0.043 for the 6431 independent reflections used. The lattice consists of Cs(18-crown-6)+ cations and complex hydrogen oximate anions {H(L)2}-, formed via strong hydrogen bonding between the oxygen atoms of nitroso-groups [O - - - O ca. 2.456(5)Å]. The caesium atom deviates by 1.492(3) Å from the mean plane of the oxygen atoms of the macrocyclic ether (dominant orientation of disordered ligand, 60%) and adopts a typical “sunrise coordination” [Cs-O (ether) 3.040(9)-3.312(7) Å]. The hydrogen oximate groups are bonded to the metal center only on one side of the crown ether plane via the oxygen atoms of nitroso-groups and the nitrogen atoms of cyano groups (Cs-O ca. 3.040(9), 3.312(7) Å; Cs-N ca. 3.469(5), 3.679(6) Å). The coordination polyhedron of Cs+ can be described as a distorted bicapped tetragonal prism. |
| Starting Page | 901 |
| Ending Page | 905 |
| Page Count | 5 |
| File Format | PDF HTM / HTML |
| DOI | 10.1515/znb-1997-0803 |
| Volume Number | 52 |
| Alternate Webpage(s) | http://zfn.mpdl.mpg.de/data/Reihe_B/52/ZNB-1997-52b-0901.pdf |
| Alternate Webpage(s) | https://doi.org/10.1515/znb-1997-0803 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
