The Influence of Structure in Platinum(II) Polypyridyl Polymorphic Complexes
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University of Cincinnati / OhioLINK
2021
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| Online Access: | http://rave.ohiolink.edu/etdc/view?acc_num=ucin1627665370500068 |
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ndltd-OhioLink-oai-etd.ohiolink.edu-ucin16276653705000682021-10-05T05:10:37Z The Influence of Structure in Platinum(II) Polypyridyl Polymorphic Complexes Barker, Nathaniel M. Chemistry Vapochromic Polymorphs This study includes the investigation of the role of structures in two sets of platinum(II) polypyridyl polymorphic complexes. The first set of platinum(II) polypyridyl polymorphic complexes are centered around a set of square-planar Pt(II) substituted-bipyridyl complexes. These two forms (denoted as α and β forms) have the same structural motif, however, differ significantly in luminescence at room temperature and 77 K. After scrutinizing the structures, it was discovered that a slight distortion exists about the metal center in the β form as well as π...π interactions that are not present in the α form. These structural differences can count for not only the weaker but also the lower energy emission of the β form. In both cases the αand β forms, C−H...O and C−H...F interactions influence the extended packing arrangements of the α and β crystalline solids. The second set is centered around a square-planar Pt(II) terpyridine complex that forms two polymorphs that crystalize with water in the lattice and a non-solvated form. These polymorphs are not only different in color (red denoted as 1R and blue as 1B) they also differ in stability, as well as vapochromic response when exposed to volatile organic compounds (VOCs). In terms of the stability of 1R and 1B, 1R is stable in ambient laboratory conditions, while 1B will transform into the non-solvated yellow form ( 2) upon water loss from the crystal lattice. The stability of the 1R over 1B is attributed to the presence and strength of H...O, H...Cl, and H...F intermolecular interactions. Overall, these two examples highlight the role structure plays in the physical characteristics displayed by complexes, and specifically, Pt(II) polypyridyl polymorphic complexes. 2021-10-04 English text University of Cincinnati / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=ucin1627665370500068 http://rave.ohiolink.edu/etdc/view?acc_num=ucin1627665370500068 restricted--full text unavailable until 2022-08-09 This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws. |
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NDLTD |
| language |
English |
| sources |
NDLTD |
| topic |
Chemistry Vapochromic Polymorphs |
| spellingShingle |
Chemistry Vapochromic Polymorphs Barker, Nathaniel M. The Influence of Structure in Platinum(II) Polypyridyl Polymorphic Complexes |
| author |
Barker, Nathaniel M. |
| author_facet |
Barker, Nathaniel M. |
| author_sort |
Barker, Nathaniel M. |
| title |
The Influence of Structure in Platinum(II) Polypyridyl Polymorphic Complexes |
| title_short |
The Influence of Structure in Platinum(II) Polypyridyl Polymorphic Complexes |
| title_full |
The Influence of Structure in Platinum(II) Polypyridyl Polymorphic Complexes |
| title_fullStr |
The Influence of Structure in Platinum(II) Polypyridyl Polymorphic Complexes |
| title_full_unstemmed |
The Influence of Structure in Platinum(II) Polypyridyl Polymorphic Complexes |
| title_sort |
influence of structure in platinum(ii) polypyridyl polymorphic complexes |
| publisher |
University of Cincinnati / OhioLINK |
| publishDate |
2021 |
| url |
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1627665370500068 |
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AT barkernathanielm theinfluenceofstructureinplatinumiipolypyridylpolymorphiccomplexes AT barkernathanielm influenceofstructureinplatinumiipolypyridylpolymorphiccomplexes |
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