Mo and Pt Complexes of an Azine Phosphine with a Ferrocene Moiety
Condensation of the phosphino hydrazone Z-PPh2CH2C(But)=NNH2 II with ferrocene carboxaldehyde, CpFe(C5H4CHO) produced the azine monophosphine Z,E-PPh2CH2C(But)=N-N=CH(C5H4)FeCp (Z,E-LH). The reaction of Z,E-LH with the labile [Mo(CO)4(nbd)] (nbd = norbornadiene) at room temperature afforded the oran...
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The Open University of Sri Lanka
2025-06-01
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| author | Sarath D. Perera |
| author_facet | Sarath D. Perera |
| author_sort | Sarath D. Perera |
| collection | DOAJ |
| description | Condensation of the phosphino hydrazone Z-PPh2CH2C(But)=NNH2 II with ferrocene carboxaldehyde, CpFe(C5H4CHO) produced the azine monophosphine Z,E-PPh2CH2C(But)=N-N=CH(C5H4)FeCp (Z,E-LH). The reaction of Z,E-LH with the labile [Mo(CO)4(nbd)] (nbd = norbornadiene) at room temperature afforded the orange tetracarbonyl Mo(0) complex [Mo(CO)4(Z,E-LH)] (3), Z,E-LH is a bidentate ligand. When (3) was heated in boiling toluene, isomerization around the -N=CH(C5H4)FeCp double bond occurred, and the resulting red complex [Mo(CO)4(Z,Z-LH)] (4) was isolated in 78% yield. Treatment of [PtMe2(cod)] (cod = cycloocta-1,5-diene) with the ligand Z,E-LH at 20°C formed the dimethylplatinum(II) complex [PtMe2(Z,E-LH)] (5) in which the H2-proton attached to the cyclopentadienyl group showed agostic interaction with the platinum(II) centre. When the complex (5) was heated in boiling toluene, the C-H(agostic) bond underwent an oxidative activation reaction followed by a loss of methane molecule to give the cyclometallated platinum(ll) complex [PtMe(Z,E-L)] (6), with the tridentate P^N^C ligand. The compounds were adequately characterized using IR, NMR, mass spectrometry, and elemental analysis. |
| format | Article |
| id | doaj-art-3dd4c603d3234a19b42fd2a10ef417ea |
| institution | Kabale University |
| issn | 1800-3621 2550-2816 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | The Open University of Sri Lanka |
| record_format | Article |
| series | OUSL Journal |
| spelling | doaj-art-3dd4c603d3234a19b42fd2a10ef417ea2025-08-22T08:53:14ZengThe Open University of Sri LankaOUSL Journal1800-36212550-28162025-06-01201115126https://doi.org/10.4038/ouslj.v20i1.7703Mo and Pt Complexes of an Azine Phosphine with a Ferrocene MoietySarath D. Perera0https://orcid.org/0000-0001-5917-7327The Open University of Sri Lanka, Sri LankaCondensation of the phosphino hydrazone Z-PPh2CH2C(But)=NNH2 II with ferrocene carboxaldehyde, CpFe(C5H4CHO) produced the azine monophosphine Z,E-PPh2CH2C(But)=N-N=CH(C5H4)FeCp (Z,E-LH). The reaction of Z,E-LH with the labile [Mo(CO)4(nbd)] (nbd = norbornadiene) at room temperature afforded the orange tetracarbonyl Mo(0) complex [Mo(CO)4(Z,E-LH)] (3), Z,E-LH is a bidentate ligand. When (3) was heated in boiling toluene, isomerization around the -N=CH(C5H4)FeCp double bond occurred, and the resulting red complex [Mo(CO)4(Z,Z-LH)] (4) was isolated in 78% yield. Treatment of [PtMe2(cod)] (cod = cycloocta-1,5-diene) with the ligand Z,E-LH at 20°C formed the dimethylplatinum(II) complex [PtMe2(Z,E-LH)] (5) in which the H2-proton attached to the cyclopentadienyl group showed agostic interaction with the platinum(II) centre. When the complex (5) was heated in boiling toluene, the C-H(agostic) bond underwent an oxidative activation reaction followed by a loss of methane molecule to give the cyclometallated platinum(ll) complex [PtMe(Z,E-L)] (6), with the tridentate P^N^C ligand. The compounds were adequately characterized using IR, NMR, mass spectrometry, and elemental analysis.https://ouslj.sljol.info/articles/7703/files/68886eaa3f3fa.pdfmo(0)/pt(ii) complexesferroceneazine phosphinecyclometallationagostic interaction |
| spellingShingle | Sarath D. Perera Mo and Pt Complexes of an Azine Phosphine with a Ferrocene Moiety OUSL Journal mo(0)/pt(ii) complexes ferrocene azine phosphine cyclometallation agostic interaction |
| title | Mo and Pt Complexes of an Azine Phosphine with a Ferrocene Moiety |
| title_full | Mo and Pt Complexes of an Azine Phosphine with a Ferrocene Moiety |
| title_fullStr | Mo and Pt Complexes of an Azine Phosphine with a Ferrocene Moiety |
| title_full_unstemmed | Mo and Pt Complexes of an Azine Phosphine with a Ferrocene Moiety |
| title_short | Mo and Pt Complexes of an Azine Phosphine with a Ferrocene Moiety |
| title_sort | mo and pt complexes of an azine phosphine with a ferrocene moiety |
| topic | mo(0)/pt(ii) complexes ferrocene azine phosphine cyclometallation agostic interaction |
| url | https://ouslj.sljol.info/articles/7703/files/68886eaa3f3fa.pdf |
| work_keys_str_mv | AT sarathdperera moandptcomplexesofanazinephosphinewithaferrocenemoiety |