1986). Since that time, new data have become available, and these have been incorporated into the monograph and taken into consideration in the present evaluation. 1.1.2 Structural and molecular formulae and relative molecular mass o Il H2C= CH-C-NH2 Relative molecular mass: 71.08 C3HsNO 1.1.3 Chemical and physical properties of the pure substance (a) Description: White crystalline solid (monoc...

The title compound, C(7)H(8)N(2)O(2), is monoclinic (space group P2(1)/n) at 295 (2) K with Z' = 2. The two types of molecule form independent C(7) chains, and the structure is related to that of the low-temperature triclinic polymorph, where Z' = 4 in P1, by a simple displacive transformation.

A Mathematical model has been considered to study the reflection and refraction phenomenon of plane wave at the interface of an isotropic liquid medium and a triclinic (anisotropic) half-space. The incident plane qP wave generates three types of reflected waves namely quasi-P (qP), quasi-SV (qSV) and quasi-SH (qSH) waves in the tric...

In the asymmetric unit of the title compound, C(15)H(16)N(2)O(5)S(2), there are two symmetry-independent mol-ecules which adopt similar conformations, with dihedral angles between the aromatic rings of 59.30 (8) and 61.81 (8)°, and dihedral angles between acetamide group and the benzene ring of 77.08 (10) and 78.40 (10)°. Each type of mol-ecule forms similar one-dimensional polymeric structures...

The unit cell of the title compound, C(7)H(6)O(4)·H(2)O, features four independent formula units; the individual carb-oxy-lic acid mol-ecules themselves are nearly planar (r.m.s. deviations = 0.0189, 0.0334, 0.0356 and 0.0441 Å). Two independent mol-ecules each form two hydrogen bonds by acid-carbonyl O-H⋯O inter-actions and the dimers are also nearly planar (r.m.s. deviations = 0.039 and 0.049...

The structure of [{Rh2II,II(O2CCH3)4}{Pt2II,II(acam)2(NH3)4}2(PF6)4·C24H48O12]n (acam = acetamidate) was determined via X-ray crystallography. substance crystallizes in a triclinic system, and is described as follows: P-1, 10.8370(3), b 11.4188(4), c 19.4055(7)Å, α 84.079(3)°, β 89.031(3)°, γ 62.366(3)°, Z 2, V 2114.77(13) Å3. crystal solved by direct methods refined full-matrix least-squares o...