On the interaction between mercury(II) salts and 3-methylpyrazoline-5-one. The first crystal structure of a cyclic organomercuric compound with a dimercurated methylenic carbon atom
- Autor(en)
- Zora Popovic, Dubravka Matkovic-Calogovic, Zeljka Soldin, D Vikic-Topic, Gerald Giester
- Abstrakt
Synthesis and characterization of two types of novel organomercury derivatives of 3-methylpyrazoline-5-one (MepzH2-one), (XHg) 2(MepzH-one) (X = Cl-, Br-) and Hg(MepzH-one)2 are described. The 1H and 13C NMR data revealed existence of dimercurated compounds in the dimethylsulfoxide-d 6 solution. NMR spectra confirmed that the mercuration took place at the C-4 atom of the pyrazole ring. X-ray crystal structure analysis of 4,4-bis(chloromercurio)-3-methylpyrazoline-5-one revealed almost linear coordination of both mercury atoms [Hg-C 2.099(6) and 2.104(5) A° Hg-Cl 2.330(2) and 2.338(2) A° C-Hg-Cl 171.1(2) and 174.4(2)°]. The slight deviation from linearity is caused by contacts with nitrogen or oxygen atoms from the neighbouring molecule [Hg?N 2.768(5) and Hg?O 2.748(5) A°]. The molecules are interconnected by hydrogen bonds N-H?Cl of 3.286(5) A°. Œ Springer Science+Business Media, Inc. 2006.
- Organisation(en)
- Institut für Mineralogie und Kristallographie
- Externe Organisation(en)
- University of Zagreb, Rudjer Boskovic Institute
- Journal
- Structural Chemistry: computational and experimental studies of chemical and biological systems
- Band
- 17
- Seiten
- 195-200
- Anzahl der Seiten
- 6
- ISSN
- 1040-0400
- Publikationsdatum
- 2006
- Peer-reviewed
- Ja
- ÖFOS 2012
- 105113 Kristallographie
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/bbaa0195-b05f-46a0-b95a-886e404b653a