The reaction between tetra(2-pyridyl)pyrazine (tppz) and molecular bromine afforded [(H-4 tppz(4+))(Br-)(2)(Br-4(2-))], characterised by means of FT-Raman spectroscopy and single-crystal X-ray diffraction. The crystal structure showed that the final framework can be considered as being made up by the self-assembly of the building blocks (Br-, Br-2, H(4)tppz(4+)), driven exclusively by non-covalent interactions. The nature and positions of FT-Raman peaks for the linear symmetric Br-4(2-) ion were interpreted based on MP2/ LanL2DZ calculations.
Self-assembly of supramolecular architectures based on polybromide anions: crystal structure of [(H4tppz4+)(Br–)2(Br42–)] [tppz = tetra(2-pyridyl)pyrazine]
ARAGONI, MARIA CARLA;ARCA, MASSIMILIANO;ISAIA, FRANCESCO;LIPPOLIS, VITO;MANCINI, ANNALISA;
2005-01-01
Abstract
The reaction between tetra(2-pyridyl)pyrazine (tppz) and molecular bromine afforded [(H-4 tppz(4+))(Br-)(2)(Br-4(2-))], characterised by means of FT-Raman spectroscopy and single-crystal X-ray diffraction. The crystal structure showed that the final framework can be considered as being made up by the self-assembly of the building blocks (Br-, Br-2, H(4)tppz(4+)), driven exclusively by non-covalent interactions. The nature and positions of FT-Raman peaks for the linear symmetric Br-4(2-) ion were interpreted based on MP2/ LanL2DZ calculations.
File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
