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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Usol'tseva, Nadejda Praefcke, Klaus Heinrich, Benoit Bilgin, Belkiz Guillon, Daniel |
| Copyright Year | 1995 |
| Abstract | Two series (4 and 5, each with three members) of a new family of metallomesogens have been synthesized starting from the bisimine ligands 1 and 2 and the dichloroplatinum compound 3. These one-pot reactions of 1 or 2 with 3 leading to 4a and 5a, respectively, give insights into possible self-assembly processes and constitute the first examples of four-fold o-platinations in organic chemistry. The two pairs of halogen homologues 4b, c and 5b, c are then obtained by the usual exchange of the four central chlorine bridges in their parent compounds 4a or 5a, respectively, using the corresponding alkali-metal halides (potassium bromide, lithium iodide) in organic solvents at room temperature. Furthermore, we report on the mesomorphism of these first tetraplatinum organyls (applying a new system of mesophase notation for materials with sheet-like molecular structure) and describe some of their unusual lyotropic (including charge-transfer-induced chiral nematic) properties in apolar organic solvents in which, e.g., two nematic–columnar phases can be observed side by side. |
| Starting Page | 2257 |
| Ending Page | 2264 |
| Page Count | 8 |
| File Format | |
| ISSN | 09599428 |
| Volume Number | 5 |
| Issue Number | 12 |
| Journal | Journal of Materials Chemistry |
| DOI | 10.1039/JM9950502257 |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Self-assembly Organic chemistry Halogen Chlorine Potassium bromide Lithium iodide Mesophase Lyotropic liquid crystal Chirality Liquid crystal |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Materials Chemistry |
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