Bis(1,1-dimethylbiguanido)copper(II) octahydrate

Abstract

Key indicatorsSingle-crystal X-ray study T = 173 K Mean '(N±C) = 0.002 A Ê R factor = 0.026 wR factor = 0.051 Data-to-parameter ratio = 13.8For details of how these key indicators were automatically derived from the article, see

Synthesis of Metforminium(2+) Decavanadates – Crystal Structures and Solid‐State Characterization

“…[31] Like biguanide, metformin is a moderately strong base with two pK a values of 2.8 and 11.5 in aqueous solution. [32] At neutral pH, the monoprotonated form, C 4 H 12 N 5 + (HMetf + , Figure 1, b), is stabilized; HMetf + has been used as a ligand because it can coordinate to transition metal ions such as Co II , [33] Ni II , [33,34] Cu II , [33,35,36] and Pt II . [37] Metformin complexes with biologically relevant cations are interesting for the study of the mechanisms of drug action and for target improvement, which is a key point in the design of new drugs.…”

Synthesis and characterization of new copper(II) complex compounds with chlorhexidine. Part I

“…The magnetic moment has lower values for all the complexes: 1.43 MB for the complex (1), 1.50 MB for the that the metal-N (imino) formation takes priority, probably due to the increase of stability by p-conjugation [19,20].…”

Synthesis of Highly Selective Nano-Structured Functionalized Sba-15 Metformin Palladium Composite Catalyst in Partial Hydrogenation of Alkynes

“…, due to the removal of HCl when metformin is attached to the silica surface. On the other hand, the metal-ligand coordination 30,32 presumably leads to a shift of these two peaks again to lower frequencies (1568 and 1634 cm −1 ). This shift can be observed in compare with curves (d) and (e) in Fig.…”

“…The signals appeared at 3150-3400 cm −1 region can be assigned to the N-H stretching of C=N-H group on metformin 30 . The unmodified SBA-15 spectrum in curve (b) shows the typical silica bands associated with the main inorganic backbone, the signals appeared at 1000 and 1200 cm −1 are assigned to asymmetric stretching of Si-O-Si, the peak at 1620 cm −1 is related to the bending vibration of water bonded to the inorganic backbone and signal appeared at 3430 cm −1 can be assigned to O-H stretching frequency of Si-O-H groups and/ or water in atmosphere and within porous sample.…”