Ligand substitution and reduction reactions of decakis(isopropylisocyanide)dicobalt(II)
The reactions between decakis(isopropylisocyanide)dicobalt(II), present as [Co(CNCHMe 2 ) 5 ] 2+ in solution, and three triaryl phosphines, PPh 3 , P(C 6 H 4 Me-p) 3 , and P(C 6 H 4 OMe-p) 3 , have been studied in dichloromethane. The reactions were investigated under pseudo first-order conditions a...
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| Veröffentlicht in: | Transition metal chemistry (Weinheim) 2013-04, Vol.38 (3), p.235-242 |
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| creator | Oyetunji, Olayinka A. Ramokongwa, Godiraone Ogunlusi, Grace O. Becker, Clifford A. L. |
| description | The reactions between decakis(isopropylisocyanide)dicobalt(II), present as [Co(CNCHMe
2
)
5
]
2+
in solution, and three triaryl phosphines, PPh
3
, P(C
6
H
4
Me-p)
3
, and P(C
6
H
4
OMe-p)
3
, have been studied in dichloromethane. The reactions were investigated under pseudo first-order conditions at different temperatures. A combination of conventional, stopped-flow, and infrared spectroscopy was employed in order to gain insight into the reaction mechanisms. Addition of each of the three phosphines to the Co(II) complex results in a shift in the
λ
max
followed by increase and/or decrease in absorbance at the new wavelength. The triaryl phosphines react in the order P(C
6
H
4
OMe-p)
3
≫ P(C
6
H
4
Me-p)
3
> PPh
3
. This is explained in terms of the electron-donating/π-acceptor properties of the phosphines. The reactions are proposed to proceed via a number of reaction pathways including ligand substitution, ligand rearrangement, disproportionation, and reduction. |
| doi_str_mv | 10.1007/s11243-012-9683-3 |
| format | Article |
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2
)
5
]
2+
in solution, and three triaryl phosphines, PPh
3
, P(C
6
H
4
Me-p)
3
, and P(C
6
H
4
OMe-p)
3
, have been studied in dichloromethane. The reactions were investigated under pseudo first-order conditions at different temperatures. A combination of conventional, stopped-flow, and infrared spectroscopy was employed in order to gain insight into the reaction mechanisms. Addition of each of the three phosphines to the Co(II) complex results in a shift in the
λ
max
followed by increase and/or decrease in absorbance at the new wavelength. The triaryl phosphines react in the order P(C
6
H
4
OMe-p)
3
≫ P(C
6
H
4
Me-p)
3
> PPh
3
. This is explained in terms of the electron-donating/π-acceptor properties of the phosphines. The reactions are proposed to proceed via a number of reaction pathways including ligand substitution, ligand rearrangement, disproportionation, and reduction.</description><identifier>ISSN: 0340-4285</identifier><identifier>EISSN: 1572-901X</identifier><identifier>DOI: 10.1007/s11243-012-9683-3</identifier><language>eng</language><publisher>Dordrecht: Springer Netherlands</publisher><subject>Catalysis ; Chemistry ; Chemistry and Materials Science ; Inorganic Chemistry ; Organometallic Chemistry ; Physical Chemistry</subject><ispartof>Transition metal chemistry (Weinheim), 2013-04, Vol.38 (3), p.235-242</ispartof><rights>Springer Science+Business Media Dordrecht 2013</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c316t-d15c372a6cf22d28d9098594be2076099892f4fec6bdf0cd7052494e0c938d7e3</citedby><cites>FETCH-LOGICAL-c316t-d15c372a6cf22d28d9098594be2076099892f4fec6bdf0cd7052494e0c938d7e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11243-012-9683-3$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11243-012-9683-3$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27903,27904,41467,42536,51298</link.rule.ids></links><search><creatorcontrib>Oyetunji, Olayinka A.</creatorcontrib><creatorcontrib>Ramokongwa, Godiraone</creatorcontrib><creatorcontrib>Ogunlusi, Grace O.</creatorcontrib><creatorcontrib>Becker, Clifford A. L.</creatorcontrib><title>Ligand substitution and reduction reactions of decakis(isopropylisocyanide)dicobalt(II)</title><title>Transition metal chemistry (Weinheim)</title><addtitle>Transition Met Chem</addtitle><description>The reactions between decakis(isopropylisocyanide)dicobalt(II), present as [Co(CNCHMe
2
)
5
]
2+
in solution, and three triaryl phosphines, PPh
3
, P(C
6
H
4
Me-p)
3
, and P(C
6
H
4
OMe-p)
3
, have been studied in dichloromethane. The reactions were investigated under pseudo first-order conditions at different temperatures. A combination of conventional, stopped-flow, and infrared spectroscopy was employed in order to gain insight into the reaction mechanisms. Addition of each of the three phosphines to the Co(II) complex results in a shift in the
λ
max
followed by increase and/or decrease in absorbance at the new wavelength. The triaryl phosphines react in the order P(C
6
H
4
OMe-p)
3
≫ P(C
6
H
4
Me-p)
3
> PPh
3
. This is explained in terms of the electron-donating/π-acceptor properties of the phosphines. The reactions are proposed to proceed via a number of reaction pathways including ligand substitution, ligand rearrangement, disproportionation, and reduction.</description><subject>Catalysis</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Inorganic Chemistry</subject><subject>Organometallic Chemistry</subject><subject>Physical Chemistry</subject><issn>0340-4285</issn><issn>1572-901X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNp1UD1PwzAUtBBIlMIPYIvE0g6B92wnjkdU8VGpEgsINsuxncqlJMVOhv573IaBhende7q7dzpCrhFuEUDcRUTKWQ5Ic1lWLGcnZIKFSBvgxymZAOOQc1oV5-Qixg0AFFTwCXlf-bVubRaHOva-H3rftdnhEJwdzHELTh9BzLoms87oTx9nPna70O322wTMXrfeurn1pqv1tp8tl_NLctbobXRXv3NK3h4fXhfP-erlabm4X-WGYdnnFgvDBNWlaSi1tLISZFVIXjsKogQpK0kb3jhT1rYBY0WKzSV3YCSrrHBsSm5G35Tme3CxV5tuCG16qZChQEBWQGLhyDKhizG4Ru2C_9JhrxDUoT819qdSf-rQn2JJQ0dNTNx27cIf539FP2dpc2o</recordid><startdate>20130401</startdate><enddate>20130401</enddate><creator>Oyetunji, Olayinka A.</creator><creator>Ramokongwa, Godiraone</creator><creator>Ogunlusi, Grace O.</creator><creator>Becker, Clifford A. L.</creator><general>Springer Netherlands</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20130401</creationdate><title>Ligand substitution and reduction reactions of decakis(isopropylisocyanide)dicobalt(II)</title><author>Oyetunji, Olayinka A. ; Ramokongwa, Godiraone ; Ogunlusi, Grace O. ; Becker, Clifford A. L.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c316t-d15c372a6cf22d28d9098594be2076099892f4fec6bdf0cd7052494e0c938d7e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Catalysis</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Inorganic Chemistry</topic><topic>Organometallic Chemistry</topic><topic>Physical Chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Oyetunji, Olayinka A.</creatorcontrib><creatorcontrib>Ramokongwa, Godiraone</creatorcontrib><creatorcontrib>Ogunlusi, Grace O.</creatorcontrib><creatorcontrib>Becker, Clifford A. L.</creatorcontrib><collection>CrossRef</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Transition metal chemistry (Weinheim)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Oyetunji, Olayinka A.</au><au>Ramokongwa, Godiraone</au><au>Ogunlusi, Grace O.</au><au>Becker, Clifford A. L.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Ligand substitution and reduction reactions of decakis(isopropylisocyanide)dicobalt(II)</atitle><jtitle>Transition metal chemistry (Weinheim)</jtitle><stitle>Transition Met Chem</stitle><date>2013-04-01</date><risdate>2013</risdate><volume>38</volume><issue>3</issue><spage>235</spage><epage>242</epage><pages>235-242</pages><issn>0340-4285</issn><eissn>1572-901X</eissn><abstract>The reactions between decakis(isopropylisocyanide)dicobalt(II), present as [Co(CNCHMe
2
)
5
]
2+
in solution, and three triaryl phosphines, PPh
3
, P(C
6
H
4
Me-p)
3
, and P(C
6
H
4
OMe-p)
3
, have been studied in dichloromethane. The reactions were investigated under pseudo first-order conditions at different temperatures. A combination of conventional, stopped-flow, and infrared spectroscopy was employed in order to gain insight into the reaction mechanisms. Addition of each of the three phosphines to the Co(II) complex results in a shift in the
λ
max
followed by increase and/or decrease in absorbance at the new wavelength. The triaryl phosphines react in the order P(C
6
H
4
OMe-p)
3
≫ P(C
6
H
4
Me-p)
3
> PPh
3
. This is explained in terms of the electron-donating/π-acceptor properties of the phosphines. The reactions are proposed to proceed via a number of reaction pathways including ligand substitution, ligand rearrangement, disproportionation, and reduction.</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><doi>10.1007/s11243-012-9683-3</doi><tpages>8</tpages></addata></record> |
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| language | eng |
| recordid | cdi_proquest_journals_1317101350 |
| source | Springer Nature - Complete Springer Journals |
| subjects | Catalysis Chemistry Chemistry and Materials Science Inorganic Chemistry Organometallic Chemistry Physical Chemistry |
| title | Ligand substitution and reduction reactions of decakis(isopropylisocyanide)dicobalt(II) |
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