Synthesis, Molecular and Crystal Structures of Some Monocyanocymantrenes

Electrophilic cyanation of the lithiated cymantrenes [(C 5 X 4 Li)Mn(CO) 3 ] (X = H, Cl) yields the corresponding monocyanocymantrenes [(C 5 X 4 CN)Mn(CO) 3 ] ( 1 , 3 ). UV irradiation of 1 in the presence of PPh 3 leads to the formation of [(C 5 H 4 CN)Mn(CO) 2 PPh 3 ] ( 2 ). The molecular and crys...

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Bibliographic Details
Published in:Journal of chemical crystallography 2022-09, Vol.52 (3), p.315-323
Main Authors: Sünkel, Karlheinz, Reimann, Dietmar, Klein-Heßling, Christian
Format: Article
Language:English
Subjects:
Carbon monoxide
Chemical synthesis
Chemistry
Chemistry and Materials Science
Crystal structure
Crystallography and Scattering Methods
Crystals
Cyano groups
Inorganic Chemistry
Organometallic Chemistry
Original Paper
Physical Chemistry
Structure
Ultraviolet radiation
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Summary:Electrophilic cyanation of the lithiated cymantrenes [(C 5 X 4 Li)Mn(CO) 3 ] (X = H, Cl) yields the corresponding monocyanocymantrenes [(C 5 X 4 CN)Mn(CO) 3 ] ( 1 , 3 ). UV irradiation of 1 in the presence of PPh 3 leads to the formation of [(C 5 H 4 CN)Mn(CO) 2 PPh 3 ] ( 2 ). The molecular and crystal structures of 1 , 2 and 3 were determined. The cyano groups take part in intermolecular C-X⋯N (X = H, Cl) interactions for all compounds. Graphical Abstract The crystal structures of the cyanocymantrenes [(C 5 X 4 CN)Mn(CO) 2 L] X = H, Cl, L= CO, PPh 3 ) show numerous C-X⋯Y (X= H, Cl; Y= N, O, C, H) and for L= PPh 3 also C-H⋯π interactions.
ISSN:1074-1542
1572-8854
DOI:10.1007/s10870-022-00929-1