A series of (ferrocenylmethyl)trialkyl ammoniums: FcCH 2 NR 3 + with R=CH 3 (1), C 2 H 5 (2), n-C 3 H 7 (3), n-C 4 H 9 (4) (X-ray structure provided), n-C 5 H 1 1 (5) and the planar chiral 1,2-disubstituted Fc(CH 3 )CH 2 NBu 3 + (6) have been tentatively used as template cation in order to synthesise bidimensional (2D) oxalate bridged molecule-based magnets of general formula {[Cr I I I M I I (ox) 3 ][FcCH 2 NR 3 ]} n and{[Cr I I I M I I (ox) 3 ][Fc(CH 3 )CH 2 NBu 3 ]} n (M=Mn 2 + , Ni 2 + , ox=C 2 O 4 2 - ). These polymeric compounds were obtained only for reactions performed with 2, 3, 4 and 6. Starting from resolved Cr(ox) 3 2 - , the networks were prepared in their two enantiomeric forms in the case of {[Cr I I I Ni I I (ox) 3 ][FcCH 2 NBu 3 ]} n ([Cr Δ -Ni Λ ]-4 and [Cr Λ -Ni Δ ]-4) or {[Cr I I I Mn I I (ox) 3 ][FcCH 2 NBu 3 ]} n ([Cr Δ -Mn Λ ]-4 and [Cr Λ -Mn Δ ]-4)) and characterised by circular dichroism measurements. All these compounds are ferromagnets with a Curie temperature close to 6 K when M=Mn and to 17 K for Ni. While the manganese [Cr-Mn] containing compounds are soft magnets, the [Cr-Ni] networks show coercive force up to 2200 Oe far above those previously reported for these networks.