Erratum to “An NMR spectroscopic study of the binding of alkali metal cations and methanol by cis Mo(CO)4{Ph2P(CH2CH2O)nCH2CH2PPh2-P,P′} (n=4,5) metallacrown ethers. The X-ray crystal structures of cis-Mo (CO)4 {Ph2P(CH2CH2O)4CH2CH2PPh2-P,P′} · MeOH and cis-Mo (CO)4 {Ph2P(CH2CH2O)4CH2CH2PPh2-P,P′} · H2O” [Inorganica chimica acta 246 (1996) 229–240]