Topological polymorphism and temperature-driven topotactic transitions of metal–organic coordination polymers Full article
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CrystEngComm
ISSN: 1466-8033 |
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| Output data | Year: 2020, Volume: 22, Number: 38, Pages: 6295-6301 Pages count : 7 DOI: 10.1039/d0ce01045f | ||||
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Abstract:
Two metal–organic frameworks (MOFs), [Mg3(btdc)3(dmf)4]·DMF (1) and [Mg3(btdc)3(dmf)4] (2) (H2btdc = 2,2′-bithiophene-5,5′-dicarboxylic acid; dmf = N,N-dimethylformamide), were synthesized from a similar reaction mixture at 80 °C or 130 °C, respectively. Both compounds are based on {Mg3(RCOO)6} trinuclear carboxylate units, serving as 6-connected nodes of the corresponding 3D frameworks. The low-temperature phase (1) adopts the frequent primitive-cubic (pcu) topology, while the high-temperature phase (2) crystallizes in the very rare sxb topology. The heating of 1 results in a facile solid-state phase transition into 2 both in DMF solvent and under solvent-free conditions, involving a significant rearrangement of bulky bithiophenedicarboxylate anions in a regular fashion. The detailed analysis of the crystal structures of both polymorphs reveals possible reaction sites and provides valuable insights into such an unprecedented topotactic process.
Cite:
Dubskikh V.A.
, Lysova A.A.
, Samsonenko D.G.
, Dybtsev D.N.
, Fedin V.P.
Topological polymorphism and temperature-driven topotactic transitions of metal–organic coordination polymers
CrystEngComm. 2020. V.22. N38. P.6295-6301. DOI: 10.1039/d0ce01045f WOS Scopus OpenAlex
Topological polymorphism and temperature-driven topotactic transitions of metal–organic coordination polymers
CrystEngComm. 2020. V.22. N38. P.6295-6301. DOI: 10.1039/d0ce01045f WOS Scopus OpenAlex
Dates:
| Submitted: | Jul 20, 2020 |
| Accepted: | Aug 18, 2020 |
| Published online: | Aug 18, 2020 |
Identifiers:
| Web of science: | WOS:000575013400002 |
| Scopus: | 2-s2.0-85092411065 |
| OpenAlex: | W3079554016 |