The title compound, CISOsN2C~sH~3, the definitive formula of which has been established by X-ray structural analysis, is orthorhombic, space group P2~2121 with a= 7.806 (5), b= 29.417 (13) and c= 5-921 (5) A, Z--4. The structure has been solved by direct methods with MULTAN and refined anisotropically (R=0"073) by a method of block-diagonal...
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December 18, 2017 (v1)PublicationUploaded on: March 27, 2023
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April 5, 2017 (v1)Publication
CIsHI6N204, triclinic, P1, a = 12.719 (3), b= 7.485 (2), c= 7.728 (2) A, a =93"18 (2), fl = 100-40 (2), 3' = 99-24 (2) °, V = 711-5 (3) •3, Z = 2, Dm = 1.35, Dx = 1.34 Mg m -3, A(Mo Ka) = 0.7107/~, /.+ = 0"092 mm-~, F(000) = 304, T= 300 K, final R = 0.08 for 1124 observed reflections. The IR, Raman and ~H NMR spectra of 2,2- diacylethenamines...
Uploaded on: December 4, 2022 -
April 7, 2017 (v1)Publication
n the title compound, C 21 H 26 N 2 O 8 , the configurations of the three chiral centres are known from the synthesis, corre- sponding to a d - arabino configuration. Both double bonds show the E configuration in the solid state. Packing of the molecules is governed by normal van der Waals contacts
Uploaded on: March 27, 2023 -
April 3, 2017 (v1)Publication
The PII proteins from the cyanobacteria Synechococcus sp. PCC 7942 and Synechocystis sp. PCC 6803 have been crystallized and high-resolution structures have been obtained using X-ray crystallography. The core of these new structures is similar to that of the PII proteins from Escherichia coli, although the structures of the T- and C-loops...
Uploaded on: March 27, 2023 -
April 3, 2017 (v1)Publication
The solid-state conformation of the title compound, C23H29NOIo, has been unequivocally established. The configuration at C 1 is/3-D-glucopyranose and the pyranose ring is essentially a perfect chair. Only the E rotamer along the N---C bond is observed
Uploaded on: December 4, 2022 -
April 5, 2017 (v1)Publication
DGICYT PB92-0525-C02-02
Uploaded on: December 4, 2022 -
April 19, 2017 (v1)Publication
In the title compound, C 5 H 14 N 3 + H 2 PO 4 ˇ , the cation has a central guanidinium fragment with a planar geometry, as expected for a central C sp 2 atom with a small charge delocalization along the three C–N bonds. The crystal packing is governed by hydrogen bonds so that the phosphate anions...
Uploaded on: December 4, 2022 -
April 7, 2017 (v1)Publication
The title compound, C 10 H 16 N + H 2 PO 4 H 2 O, crystallizes in the centrosymmetric space group P 2 1 / c with two independent molecules in the asymmetric unit. Therefore, nonlinear optical properties are absent. The crystal packing is governed by hydrogen bonds, so that the phosphate anions are linked head- to-tail, ...
Uploaded on: March 27, 2023