Publikationsdatum:
2018-02-17
Beschreibung:
The cover picture shows sections of the two layered coordination polymers Cu[µ 3 -O 3 P(CH 2 ) 2 COOH]·2H 2 O ( 1 ) and Cu[( RS )-µ 3 -O 3 PCH(C 2 H 5 )COOH]·3H 2 O ( 2 ) obtained from aqueous solution with Cu 2+ and anions of 3-phosphonopropionic acid and ( RS )-2-phosphonobutyric acid, respectively. The layers are confined in both cases by COOH groups pointing to the interlayer space. Thus these coordination polymers can be regarded as the protonated form of a weakly acidic cation exchanger with layer-like structure. The negative charge density of the deprotonated layers would be similar to that known from layered silicates. A weak antiferromagnetic interaction is observed at low temperature in both compounds obviously caused by super-superexchange paths between copper cations. More details are discussed in the article by R. Köferstein, M. Arnold, and C. Robl on page 205 ff .
Print ISSN:
0044-2313
Digitale ISSN:
1521-3749
Thema:
Chemie und Pharmazie