Metal chelates of N-carbamoylmethyl-iminodiacetate(2−) ion.

Caesium bis[N-(carbamoylmethyl)iminodiacetato]chromate(III) dihydrate

“…All Cr-N and Cr-O bonding distances fall within the expected ranges for this type of complex (Green et al, 1990;Visser et al, 1999). The rest of the N-C, C-C and C-O bond distances are considered normal and correlate well with those found in H 2 ADA (Bugella-Altamirano et al, 2000a).…”

“…Lastly, it is of interest to report on the IR spectrum of this complex. Previous workers observed overlapping of (COO À ) and the amide bands in the 1600-1700 cm À1 region (Bugella-Altamirano et al, 2000a). This overlap gives rise to the broad band observed at 1615 cm À1 for the title complex.…”

Synthesis and characterization of silver(I) and heterometallic Cr(III)–Na compounds with the tripodal ligand N-(carbamoylmethyl)-iminodiacetatic acid

“…The Ag-O distances vary from 2.230(2) to 2.781(5) Å , which all fall into the normal range [22]. It is noteworthy that most of these known complexes with ADA 2or HADAare mononuclear structures in which the ligands all adopt tetradentate chelating modes [11][12][13][14][15][16][17][18]. However, in 1 the ligands adopt a novel tetradentate bridging coordination mode different from those previous examples, in which four neighboring silver(I) centers are linked into a 2D layer structure.…”

“…It can be partly or fully deprotonated (HADAand ADA 2-) and can exhibit a wide range of coordination modes. However, the strong tendency of H 2 ADA toward chelation places a limitation on its coordination chemistry, and a series of mononuclear transitional metal coordination compounds with H 2 ADA and its deprotonated derivatives have been described [11][12][13][14][15][16][17] results also reveal that using metal ions with large ionic radius or using mononuclear precursors are effective synthetic strategies for the production of multidimensional ADA ligand frameworks as shown in Schemes 1 and 2. Four different coordination modes with ADA 2can be observed in 3, which are different from previous examples [19].…”