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Gryl M, Rydz A, Wojnarska J, Krawczuk A, Kozieł M, Seidler T, Ostrowska K, Marzec M, Stadnicka KM. Origin of chromic effects and crystal-to-crystal phase transition in the polymorphs of tyraminium violurate. IUCRJ 2019; 6:226-237. [PMID: 30867920 PMCID: PMC6400187 DOI: 10.1107/s2052252518017037] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 11/30/2018] [Indexed: 06/09/2023]
Abstract
Chromic materials are nowadays widely used in various technological applications, however understanding the effect and the possibility of tuning the obtained colour of a material are still challenging. Here a combined experimental and theoretical study is presented on the solvatochromic and crystallochromic effects in the (pseudo)polymorphs of tyraminium violurate. This organic material exhibits a large solvatochromic shift (ca 192 nm) associated with broad colour change (from yellow to dark violet). Tyraminum violurate crystallizes as red crystals of form (I) from water as a solvate, and as an unsolvated form [violet crystals of (II)] from methanol solution. Form (I), when heated, undergoes two crystal-to-crystal phase transformations associated with colour change of the crystals. Crystals of (II) show extreme birefringence (ca 0.46) and high refractive index (n γ above 1.90), which can be correlated with preferential orientation of the resultant dipole moments of the ions. Examination of optical effects (UV-Vis spectra) along with theoretical calculations (QTAIM, atomic and bond polarizabilities) enabled the description of the origin of colour in the studied materials.
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Affiliation(s)
- Marlena Gryl
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Agnieszka Rydz
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Joanna Wojnarska
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Anna Krawczuk
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Marcin Kozieł
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Tomasz Seidler
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Katarzyna Ostrowska
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
| | - Monika Marzec
- Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-348 Kraków, Poland
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Lorenz V, Liebing P, Engelhardt F, Stein F, Kühling M, Schröder L, Edelmann FT. Review: the multicolored coordination chemistry of violurate anions. J COORD CHEM 2019. [DOI: 10.1080/00958972.2018.1560431] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Volker Lorenz
- Chemisches Institut der Otto-von-Guericke-Universität Magdeburg, Magdeburg, Germany
| | - Phil Liebing
- Chemisches Institut der Otto-von-Guericke-Universität Magdeburg, Magdeburg, Germany
| | - Felix Engelhardt
- Chemisches Institut der Otto-von-Guericke-Universität Magdeburg, Magdeburg, Germany
| | - Franziska Stein
- Chemisches Institut der Otto-von-Guericke-Universität Magdeburg, Magdeburg, Germany
| | - Marcel Kühling
- Chemisches Institut der Otto-von-Guericke-Universität Magdeburg, Magdeburg, Germany
| | - Lea Schröder
- Chemisches Institut der Otto-von-Guericke-Universität Magdeburg, Magdeburg, Germany
| | - Frank T. Edelmann
- Chemisches Institut der Otto-von-Guericke-Universität Magdeburg, Magdeburg, Germany
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Liebing P, Stein F, Hilfert L, Lorenz V, Oliynyk K, Edelmann FT. Synthesis and Structural Investigation of Brightly Colored Organoammonium Violurates. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800439] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Phil Liebing
- Chemisches Institut; Otto-von-Guericke-Universität Magdeburg; Universitätsplatz 2 39106 Magdeburg Germany
| | - Franziska Stein
- Chemisches Institut; Otto-von-Guericke-Universität Magdeburg; Universitätsplatz 2 39106 Magdeburg Germany
| | - Liane Hilfert
- Chemisches Institut; Otto-von-Guericke-Universität Magdeburg; Universitätsplatz 2 39106 Magdeburg Germany
| | - Volker Lorenz
- Chemisches Institut; Otto-von-Guericke-Universität Magdeburg; Universitätsplatz 2 39106 Magdeburg Germany
| | - Karyna Oliynyk
- Chemisches Institut; Otto-von-Guericke-Universität Magdeburg; Universitätsplatz 2 39106 Magdeburg Germany
| | - Frank T. Edelmann
- Chemisches Institut; Otto-von-Guericke-Universität Magdeburg; Universitätsplatz 2 39106 Magdeburg Germany
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