A series of novel mononuclear iron(III) complexes [Fe(saldpt)(atz)] (1) and [Fe(Rsalpet)(atz)] (2a-d) involving 5-aminotetrazole (Hatz) and pentadentate Schiff base ligands (H2saldpt = N,N'-bis(2-hydroxybenzyliden)-1,7-diamino-4-azaheptane, H2salpet = N,N'-bis(2-hydroxybenzyliden)-1,6-diamino-3-azahexane, H25Cl-salpet = N,N'-bis(5-chloro-2-hydroxybenzylidene)-1,6-diamino-3-azahexane, H25Br-salp...

Phosphotungstic acid (which will be designated as PTA) has long been used in separations of the amino acids. It was employed by Drechsel (1) in the discovery of lysine in casein, and by Hausmann (2), by Osborne, Leavenworth, and Brautlecht (3), and by Van Slyke (4-8) for quantitative precipitation of the diamino acids, arginine, lysine, and histidine, in protein hydrolysates. Cystine was found ...

A T-jump/time-of-flight mass spectrometer (T-Jump/TOFMS) is used to probe the decomposition of several aminotetrazole containing energetic materials under very high heating rates of 10(5)-10(6) K/s. The materials investigated are 5-amino-1-methyl-1H-tetrazolium dinitramide (MeHAT_DN), 1,5-diamino-4-methyl-1H-tetrazolium dinitramide (MeDAT_DN), 1,5-diamino-1H-tetrazolium nitrate (DAT_N), 1,5-dia...

In the title mononuclear complex, [Zn(N(3))(2)(C(8)H(8)N(6))(2)], the Zn(II) atom, lying on a twofold rotation axis, is six-coordinated in a distorted octa-hedral environment by four N atoms from two 2,4-diamino-6-(2-pyrid-yl)-1,3,5-triazine ligands and two N atoms from two end-on-coordinated azide ions. N-H⋯N hydrogen bonds between the ligand and azide ion link the complex mol-ecules into a th...

IN THE CRYSTAL OF THE TITLE COMPOUND [SYSTEMATIC NAME: 2-(3,5-diamino-6-chloro-pyrazin-2-ylcarbon-yl)guanidinium chloride methanol disolvate], C(6)H(9)ClN(7)O(+)·Cl(-)·2CH(3)OH , the components are connected by N-H⋯N, N-H⋯Cl, N-H⋯O, O-H⋯Cl and O-H⋯O hydrogen bonds into a three-dimensional network. The dihedral angle between the aromatic ring and the guanidine residue is 6.0 (2)°.