Sodium trans-Bis(methyliminodiacetato-O,N,O)chromate(III), Na[Cr(C₅H₇NO₄)₂]

In the title compound, Na[Cr^III{RN(CH₂CO₂)₂}₂], where R is CH₃, the methyliminodiacetate anions function as tridentate ligands, defining a slightly distorted octahedral coordination at the Cr^III ion with the N atoms in a trans configuration. The Cr-N distance of 2.060 (2) Å is slightly shorter than the values found in the complexes where R is bulkier, i,e, an isopropyl or tert-butyl group, whereas the Cr-O bond lengths vary little as the size of R is changed. The methyliminodiacetato complexes so far studied.

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