Revisiting the reactivity of Ru3(CO)12 with PhC≡CPh (diphenylacetylene)-new findings of a thermic effect towards higher nuclearity
IR@NISCAIR: CSIR-NISCAIR, New Delhi - ONLINE PERIODICALS REPOSITORY (NOPR)
View Archive Info| Field | Value | |
| Title |
Revisiting the reactivity of Ru3(CO)12 with PhC≡CPh (diphenylacetylene)-new findings of a thermic effect towards higher nuclearity
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| Creator |
Bhowmik, Mihir L
Abedin, Tareque S M Kabir, Shariff E |
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| Subject |
Ruthenium clusters
Carbonyls Diphenylacetylene Coordination mode X-ray structures |
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| Description |
177-184
In this paper, we report tri- and tetranuclear ruthenium carbonyl compounds containing PhC≡CPh ligand showing μ<sub>3</sub>-η<sup>2</sup>, μ<sub>3</sub>-η<sup>4</sup>, μ<sub>4</sub>-η<sup>2 </sup>coordination modes. A one-pot reaction between [Ru<sub>3</sub>(CO)<sub>12</sub>] and PhC≡CPh in THF (tetrahydrofuran) at 66 °C has given the new trinuclear compound [Ru<sub>3</sub>(CO)<sub>6</sub>(μ-CO)<sub>2</sub>(μ<sub>3</sub>-η<sup>4</sup>-C<sub>4</sub>Ph<sub>4</sub>)] (<strong>2</strong>) in 30% yield together with the previously reported [Ru<sub>3</sub>(CO)<sub>8</sub>(μ<sub>3</sub>-η<sup>2</sup>-C<sub>2</sub>Ph<sub>2</sub>)<sub>2</sub>] (<strong>1</strong>) in 25% yield. Compound <strong>1</strong> converts to <strong>2</strong> under refluxing condition in THF. A similar reaction involving [Ru<sub>3</sub>(CO)<sub>12</sub>] with PhC≡CPh in refluxing benzene (80 <sup>°</sup>C) afforded previously reported <em>closo</em>-tetraruthenium compounds [Ru<sub>4</sub>(CO)<sub>12</sub>(μ<sub>4</sub>-η<sup>2</sup>-C<sub>2</sub>Ph<sub>2</sub>)] (<strong>3</strong>) and [Ru<sub>4</sub>(CO)<sub>10</sub>(μ-CO)(μ<sub>4</sub>-η<sup>2</sup>-C<sub>2</sub>Ph<sub>2</sub>)<sub>2</sub>] (<strong>4</strong>) in 25 and 16% yields, respectively, along with <strong>2</strong> in 20% yield. Compounds <strong>1</strong>, <strong>2</strong> and <strong>4</strong> have been characterized by single-crystal X-ray diffraction analysis in addition to IR and <sup>1</sup>H NMR spectroscopic methods. |
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| Date |
2021-02-11T07:04:34Z
2021-02-11T07:04:34Z 2021-02 |
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| Type |
Article
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| Identifier |
0975-0975(Online); 0376-4710(Print)
http://nopr.niscair.res.in/handle/123456789/56204 |
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| Language |
en_US
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| Rights |
<img src='http://nopr.niscair.res.in/image/cc-license-sml.png'> <a href='http://creativecommons.org/licenses/by-nc-nd/2.5/in' target='_blank'>CC Attribution-Noncommercial-No Derivative Works 2.5 India</a>
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| Publisher |
NISCAIR-CSIR, India
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| Source |
IJC-A Vol.60A(02) [February 2021]
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