Isomorphic Co(II) and Zn(II) phosphonates: co-crystal formation of [{M2(η1-DMPzH)4(Cl3CPO3)2}{M(η1-DMPzH)2Cl2}2](toluene)2 (M = Co(II) and Zn(II))

Two pairs of isomorphic molecular phosphonates are reported. The first isomorphic pair involves the co-crystals [{Co-2(eta(1)-DMPzH)(4)(Cl3CPO3)(2)}{Co(eta(1)-DMPzH)(2)Cl-2}(2)](toluene)(2) [1] and [{Zn-2 (eta(1)-DMPzH)(4)(Cl3CPO3)(2)}{Zn(eta(1)-DMPzH)(2)Cl-2}(2)](toluene)(2) [2] while the second isomorphic pair is {Co-2(eta(1)-DMPzH)(2)Cl-2(Cl3CPO3)(2)} (HNEt3)(2) [3] and {Zn-2(eta(1)-DMPzH)(2)Cl-2(Cl3CPO3)(2)}(HNEt3)(2) [4]. These have been prepared by multi-component reactions involving normal solution-state synthesis at room temperature. Change of reaction solvent from acetonitrile to methanol affords change of products from 1 and 2 to 3 and 4.