ChemInform Abstract: Synthesis, Single-Crystal Structure Determination and Raman Spectra of the Tricyanomelaminates NaA5[C6N9]2·4H2O (A: Rb, Cs).

ChemInform ◽  
2016 ◽  
Vol 47 (25) ◽  
Author(s):  
Olaf Reckeweg ◽  
Armin Schulz ◽  
Francis J. DiSalvo
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Raman Spectra ◽  
Structure Determination ◽  
Single Crystal Structure ◽  
Crystal Structure Determination

Synthesis, single-crystal structure determination and Raman spectra of the tricyanomelaminates NaA5[C6N9]2 · 4 H2O (A = Rb, Cs)

2016 ◽  
Vol 71 (4) ◽  
pp. 327-332 ◽  
Author(s):  
Olaf Reckeweg ◽  
Armin Schulz ◽  
Francis J. DiSalvo
Keyword(s):  
Crystal Structure ◽  
Aqueous Solutions ◽  
Single Crystal ◽  
Raman Spectra ◽  
Structure Determination ◽  
Single Crystal Structure ◽  
Crystal Structure Determination ◽  
Ambient Conditions ◽  
Space Group ◽  
Cell Parameters

AbstractTransparent colorless crystals of NaA5[C6N9]2 · 4 H2O (A = Rb, Cs) were obtained by blending aqueous solutions of Na3[C6N9] and RbF or CsF, respectively, and subsequent evaporation of the water under ambient conditions. Both compounds crystallize in the space group P21/m (no. 11) with the cell parameters a = 815.56(16), b = 1637.7(4) and c = 1036.4(3) pm, and β = 110.738(12)° for NaRb5[C6N9]2 · 4 H2O and a = 843.32(6), b = 1708.47(11) and c = 1052.42(7) pm, and β = 112.034(2)° for NaCs5[C6N9]2 · 4 H2O, respectively. Raman spectra of the title compounds complement our results.

Single crystal structure determination of cetylpyridiniumammonium bromide and Rietveld structure determination of cetylquinuclidinium bromide

1998 ◽  
Vol 213 (2) ◽  
Author(s):  
P. Ballirano ◽  
R. Caminiti ◽  
C. Sadun ◽  
V. M. Coiro ◽  
G. Mancini ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Structure Determination ◽  
Single Crystal Structure ◽  
Crystal Structure Determination ◽  
Tetraalkylammonium Bromide ◽  
Structure Solution

AbstractThe structures of cetylpyridiniumammonium bromide (CPyB) and cetylquinuclidinium bromide (CQB), two tetraalkylammonium bromide surfactants, are reported. In particular, whereas the structure solution of CPyB was carried out through conventional single-crystal diffractometry, the structure of CQB has been determined by means of powder diffractometry. CPyB crystallizes in

The elusive crystals of calcium acetate hemihydrate: chiral rods linked by parallel hydrophilic strips

CrystEngComm ◽  
2021 ◽  
Author(s):  
Brendan F. Abrahams ◽  
Christopher J. Commons ◽  
Timothy A. Hudson ◽  
Robin W. Sanchez Arlt
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Structure Determination ◽  
Calcium Acetate ◽  
Single Crystal Structure ◽  
Crystal Structure Determination ◽  
Chance Discovery

The chance discovery of crystals of calcium acetate hemihydrate, which is commonly formed on calcareous heritage objects, has allowed its single crystal structure determination; this remarkable crystal structure consists of chiral rod-like units.

Synthese und Kristallstruktur von Cl3Ti[N(SiMe2Cl)(SiMe2NH2)] / Synthesis and Crystal Structure of Cl3Ti[N(SiMe2Cl)(SiMe2N H2)]

1996 ◽  
Vol 51 (8) ◽  
pp. 1141-1144 ◽  
Author(s):  
R. Buheitel ◽  
W. Milius ◽  
W. Schnick
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Structure Determination ◽  
Membered Ring ◽  
Single Crystal Structure ◽  
Crystal Structure Determination ◽  
Central Feature ◽  
Synthesis And Crystal Structure

Cl3Ti[N(SiMe2Cl)(SiMe2NH2)] is yielded by reaction of TiCl4 with two molecules ClMe2SiNHSiMe3. A single crystal structure determination (P 21/n, a = 747.12(2), b = 1294.1(3), c = 1496.7(3) pm, β = 90.30(3)°, Z = 4) shows a planar four-membered ring Ti-N-Si-N as the central feature of the monomers formed by a weak coordinative bond of the NH2 group to the Ti atoms. The monomers are connected to give dimers via two Cl bridges linked to the Ti atoms.

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