Guanidinium-carbonate

Fig. 7 Manual grinding of the ferrocenyl dicarboxylic acid complex [Fe(ip -C5H4COOH)2] with l,4-diazabicyclo[2.2.2]octane, 1,4-phenylenediamine,piperazine, fraMS-l,4-cyclohexa-nediamine and guanidinium carbonate generates quantitatively the corresponding organic-organometallic adducts. The reaction with phenylenediamine highlights that single crystals of the adduct can be grown from solution and used to fully characterize the reaction product...

If this compound is heated with guanidinium carbonate it yields microscopic, hexagonal leaflets of the formula ... 

Creatinase catalyzes the hydrolysis of creatine to N-methyl-glycine and urea by a mechanism in which water is activated for attack on substrate guanidinium carbon by the imidazole of His acting as general base [66]. 

Since the interaction coefficients between Th" and CO] and HCO3 and those between the guanidinium cation and the anions CO," and Th(C03)5 are not known, the recalculated value of logic A = 28.3 in guanidinium carbonate solution (7 = 1.0 M) caimot be extrapolated to zero ionic strength, but as the Az term in the SIT... 

Txmgsten (VI) oxide is dissolved in guanidinium carbonate, HCl is added to ensure the level of acidity required for the formation of a heteropoly compoimd, and the required quantity of telluric acid is introduced. 

Figure 8.66 Projection along c showing the nearly planar guanidinium-carbonate (1 1) rosette network II at z = 1/2 in the crystal structure of 35. The atom types are differentiated by size and different grey scales, and N-H- O hydrogen bonds are represented by dotted lines. The layer is composed of independent carbonate ions [labeled by their central carbon atoms C(1) and C(3)[ andguanidinium ions [C(2) and C(4)[ in equal numbers. Note Mean atomic deviation from plane of one rosette = 0.36 A, and mean atomic deviation from plane of ribbon fragment [C(1), C(2), C(3), C(4)[ = 0.44 A]. Symmetry transformation a (1 — x, I + y, 1 - z)...

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