Sm(ii) reduction chemistry of heteroalkynes: stable adducts, reductive coupling, reductive C–C/C–N bond cleavage and trapping of the tert-butyl fragment with bulky nitriles, phosphaalkynes and isonitrilesCCDC reference numbers 765856–765859for 2–5, respectively. For crystallographic data in CIF or other electronic format see DOI: 10.1039/c002778b - Gardiner, Michael G.; James, Adam N.; Jones, Cameron; Schulten, Christian (Dalton Transactions: An International Journal of Inorganic Chemistry, 2010)