The crystal structure of sodium percarbonate: an unusual layered solid

Adams, Jean; Pritchard, Robin G.

doi:10.1107/s0567740877011790

Cited by 28 publications

(20 citation statements)

References 8 publications

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“…Significant interest has been shown in the oxalates (Pedersen, 1972a,b;Adams et al, , 1980a, phosphates (Adams & Ramdas, 1978;Oeckler & Montbrun, 2008) and sulfates Pritchard et al, 2005) of alkali metals (Adams et al, 1980a,b;Oeckler & Montbrun, 2008;Pritchard et al, 2005) and of ammonium (Pedersen, 1972a,b) and guanidinium Adams & Ramdas, 1978) cations. The structure of Na 2 CO 3 Á1.5H 2 O 2 has been determined several times under various conditions (Adams & Pritchard, 1977;Carrondo et al, 1977;Pritchard & Islam, 2003). Special attention has been paid to Na 2 CO 3 Á1.5H 2 O 2 , one of the most important industrially produced bleaching and oxidation agents (Jakob et al, 2005;McKillop & Sanderson, 2000).…”

Section: Commentmentioning

confidence: 99%

Ammonium and caesium carbonate peroxosolvates: supramolecular networks formed by hydrogen bonds

et al. 2012

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Diammonium carbonate hydrogen peroxide monosolvate, 2NH(4)(+)·CO(3)(2-)·H(2)O(2), (I), and dicaesium carbonate hydrogen peroxide trisolvate, 2Cs(+)·CO(3)(2-)·3H(2)O(2), (II), were crystallized from 98% hydrogen peroxide. In (I), the carbonate anions and peroxide solvent molecules are arranged on twofold axes. The peroxide molecules act as donors in only two hydrogen bonds with carbonate groups, forming chains along the a and c axes. In the structure of (II), there are three independent Cs(+) ions, two of them residing on twofold axes, as are two of the four peroxide molecules, one of which is disordered. Both structures comprise complicated three-dimensional hydrogen-bonded networks.

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Section: Commentmentioning

confidence: 99%

Ammonium and caesium carbonate peroxosolvates: supramolecular networks formed by hydrogen bonds

et al. 2012

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“…A simple form of dioxygen to manipulate in the condensed phase is hydrogen peroxide, and we have chosen this molecule to begin our study. Hydrogen peroxide forms solid complexes with urea and a variety of simple salts (Adams & Pritchard, 1976;Satin, Dudarev, Dobrynina, Fykin & Zavodnik, 1976); many of these and especially the sodium carbonate salt (Adams & Pritchard, 1977) are used as bleaches. The urea complex, (H2N)2CO.…”

Section: Introductionmentioning

confidence: 99%

Neutron diffraction study of the 1:1 urea:hydrogen peroxide complex at 81 K

Fritchie¹,

McMullan²

1981

Acta Crystallogr Sect B

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“…1½H202) is an industrial bleach, the structure of which was determined simultaneously by Adams & Pritchard (1977) and Carrondo, Griffith, Jones & Skapski (1977), hereafter AP and CGJS, although the latter diffractometer-data refinement was more accurate. The main interest in the © 1979 International Union of Crystallography NEUTRON PROFILE REFINEMENT structure is in the hydrogen-bonding pattern of the H20 2 molecules.…”

Section: Introductionmentioning

confidence: 99%

Neutron profile refinement and deuterium positions in Na2CO3.1.5D2O2

Adams¹,

Pritchard²,

Hewat³

1979

Acta Crystallogr Sect B

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1759 nent une nette augmentation des param6tres de maine. La position particuli6re des atomes de rh6nium (0,392;0;0,287) ainsi que la g6om6trie des poly6dres ReO 5 conduisent h un groupe d'espace plus sym&rique (P63cm) que celui des apatites classiques (P6a/m).Les deux positions trouv6es pour les atomes de chlore (z = 0,076 et z = -0,05 7) sont, comme dans les chlorapatites, situ6es sensiblement au ~ et au ~ de la distance entre les plans de baryum Ba(2).La similitude des spectres de poudre entre les cristaux broy6s de Bas(ReOs)3C1 et la phase Ba3Re2010 obtenue en ampoule scell6e sous vide permet de penser que ce deuxi6me compos6 est une apatite lacunaire en baryum de formule Ba91-q(ReOs) 6. I1 est possible que ce compos6 renferme quelques ions hydroxyle, l'oxyde de baryum &ant tr6s hygroscopique.La cristallog6n6se de la chlorapatite dans un flux de chiorure de baryum peut ainsi s'expliquer par le processus r6actionnel suivant:La section relativement importante des tunnels parall61es h l'axe c, due h la pr6sence des groupements ReO 5, devrait nous permettre de pr6parer des compos6s analogues contenant des halog6nes volumineux tels que le brome et l'iode.Dans ces apatites il est 6galement possible de substituer le rh6nium par le techn&ium 99 dont les propri&6s chimiques sont tr+s voisines. AbstractData obtained at 300 K with 1.9/k radiation have been refined to R I = 5.8% with isotropic temperature factors. It has been confirmed that there are two disordered D20 2 orientations at each deuterium peroxide site. The e.s.d.'s of the heavy-atom positions are comparable with the best X-ray determination but the D atom positions are much more accurate and the definition of the hydrogen-bonding geometry has been improved considerably. In contrast to the X-ray structure, the dihedral angles within the three distinct types 0567-7408/79/081759-04501.00 of D20 2 molecules have been found to be very similar at 157, 158 and 164 ° .

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The crystal structure of sodium percarbonate: an unusual layered solid

Cited by 28 publications

References 8 publications

Ammonium and caesium carbonate peroxosolvates: supramolecular networks formed by hydrogen bonds

Ammonium and caesium carbonate peroxosolvates: supramolecular networks formed by hydrogen bonds

Neutron diffraction study of the 1:1 urea:hydrogen peroxide complex at 81 K

Neutron profile refinement and deuterium positions in Na2CO3.1.5D2O2

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