A Comparison of the Isostructural [Co(NH3)5NO2]XNO3 and [Co(NH3)5ONO]XNO3, X = Cl− or Br− in Relation to Nitro–Nitrito Linkage Isomerization and Photomechanical Effects Full article
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Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials
ISSN: 2052-5192 , E-ISSN: 2052-5206 |
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| Output data | Year: 2024, Volume: B80, Number: 3, Pages: 171-181 Pages count : 11 DOI: 10.1107/s2052520624002816 | ||||
| Tags | photomechanical effects; linkage isomerization; photocrystallography; coordination compounds; reaction cavity; hydrogen bonds; single-crystal transformations. | ||||
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Abstract:
A new photoactive cobalt coordination compound, [Co(NH3)5NO2]BrNO3 (I), was obtained. Its crystal structure was shown to be isostructural with previously known [Co(NH3)5NO2]ClNO3 (II) for which linkage isomerization accompanied with mechanical response of the crystal has been already reported. Single crystals of I are transformed into nitrito isomer [Co(NH3)5ONO]BrNO3 (III) on irradiation with blue light (λ = 465 nm) without being destroyed. The crystal structure of III was also solved using single-crystal X-ray diffraction and compared with previously known [Co(NH3)5ONO]ClNO3 (IV). A detailed comparison of the structures of I, II, III and IV, including unit-cell parameters, the distribution of free space (in particular, reaction cavities around the nitro ligand), the lengths of hydrogen bonds, coordination and Voronoi–Dirichlet polyhedra has been performed. Single-crystal X-ray diffraction data were complemented with IR spectra. The effect of the replacement of Cl− by Br− on the crystal structure and on the nitro–nitrito photoisomerization is discussed.
Cite:
Kalinina P.P.
, Marchuk A.S.
, Sahoo S.
, Zakharov B.A.
, Boldyreva E.V.
A Comparison of the Isostructural [Co(NH3)5NO2]XNO3 and [Co(NH3)5ONO]XNO3, X = Cl− or Br− in Relation to Nitro–Nitrito Linkage Isomerization and Photomechanical Effects
Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials. 2024. V.B80. N3. P.171-181. DOI: 10.1107/s2052520624002816 WOS Scopus OpenAlex
A Comparison of the Isostructural [Co(NH3)5NO2]XNO3 and [Co(NH3)5ONO]XNO3, X = Cl− or Br− in Relation to Nitro–Nitrito Linkage Isomerization and Photomechanical Effects
Acta Crystallographica Section B: Structural Science, Crystal Engineering and Materials. 2024. V.B80. N3. P.171-181. DOI: 10.1107/s2052520624002816 WOS Scopus OpenAlex
Dates:
| Submitted: | Mar 5, 2024 |
| Accepted: | Mar 28, 2024 |
| Published print: | Jun 1, 2024 |
Identifiers:
| Web of science: | WOS:001258410100002 |
| Scopus: | 2-s2.0-85195708725 |
| OpenAlex: | W4396707031 |