Crystal structure of thorium nitrate pentahydrate by neutron diffraction

Taylor, J. C.; Mueller, M. H.; Hitterman, R. L.

doi:10.1107/s0365110x66001956

Cited by 84 publications

(28 citation statements)

References 13 publications

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“…The average distance (1.24 A) is comparable with N-O distances found in other nitrate complexes of Th(IV) (Ueki, Zalkin & Templeton, 1965;Taylor, Mueller & Hitterman, 1966;Sdavni6ar & Prodi6, 1965) …”

Section: The Nitrate Groupssupporting

confidence: 63%

The crystal structure of tetranitratobis(triphenylphosphine oxide)thorium(IV)

Malik¹,

Jeffery²

1973

Acta Crystallogr Sect B

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The crystal structure has been determined from three-dimensional X-ray data collected by photographic methods. The crystals are monoclinic, with unit-cell dimensions a= 14.081 (5), b= 17.590 (5), c= 16.567 (5) A,, fl= 91-02 (10)°; the space group is P21/n and Z= 4. The structure was solved by Patterson and Fourier methods, and refined by the least-squares method on the basis of 3933 indelzendent observations. The final value of conventional R is 0.1009. The thorium atom has a coordination number of ten involving eight oxygen atoms from four bidentate nitrate groups and two oxygen atoms from the Th-O-P linkages as immediate neighbours. The triphenylphosphine groups are linked with thorium through Th-O-P linkages and are related by an approximate twofold axis of symmetry passing through the thorium atom. The phosphorus atoms have irregular tetrahedral coordination with average P-C bond length= 1"80 (3) and P-O= 1"45 (2) ,~. The phenyl rings are planar with average C-C distance = 1.40 (6) A. The Th-O(bridging) distances, 2.37 (2) and 2.33 (2) ,~, are shorter than the Th-O(nitrate) distances, 2.52 (2) to 2.58 (2) ,~. The nitrate groups are planar with average N-O distance= 1.24 (6) A. 2687

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Section: The Nitrate Groupssupporting

confidence: 63%

The crystal structure of tetranitratobis(triphenylphosphine oxide)thorium(IV)

Malik¹,

Jeffery²

1973

Acta Crystallogr Sect B

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“…Comparable connections of two alkaline-earth polyhedra where the O-O edge represents a very short hydrogen bond were described, for example, in NasCu3(PO4)2[(PO4)H(PO4)] and in Na 5- Cu3(asO4) hydrates /l cinq et quatre mol6cules d'eau. Seule la structure du pentahydrate a ~t~ obtenue, simultan6ment par diffraction des rayons X (Ueki, Zalkin & Templeton, 1966) et des neutrons (Taylor, Mueller & Hitterman, 1966): le thorium est entour6 par onze oxyg~nes dont huit proviennent de quatre nitrates bident6s et trois de molecules d'eau, les deux mol6cules d'eau restantes assurant la coh6sion de la structure par des liaisons hydrog6ne. Nous avons entrepris l'6tude de la structure du t&rahydrate afin d'&ablir la coordination de l'atome de thorium et la comparer /l celle observ6e dans le pentahydrate.…”

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“…(4) A (Taylor et al, 1966;Ueki et al, 1966). coordination de l'atome de thorium peut alnsi &re d6crit comme un antiprisme pentagonal bicapp6.…”

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Structure du nitrate de thorium(IV) tétrahydraté

Charpin¹,

Chevrier²,

Lance³

et al. 1987

Acta Crystallogr C

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“…46 The bidentate character of the nitrate groups has been established by X-ray 47 and neutron diffraction studies. 48 Hence the nitrate groups in the present complexes are of bidentate nature.…”

Section: -44mentioning

confidence: 99%

Studies on the Effect of Picolines on the Stereochemistry of Lanthanide(III) Nitrate Coordination Compounds of 4[N-Furfural)amino]antipyrine Semicarbazone and Antibacterial Activities

Agarwal¹,

Agarwal²,

Prasad³

et al. 2011

Journal of the Korean Chemical Society

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ABSTRACT. The effect of α-, β-and γ-picolines on the stereochemistry of the coordination compounds of lanthanide(III) nitrates derived from 4[N-(furfural)amino]antipyrine semicarbazone (FFAAPS) has been studied. The general composition of the present coordination compounds is [Ln(FFAAPS)(NO3)3Pic] (Ln=La, Pr, Nd, Sm, Gd, Tb, Dy or Ho and Pic=α-, β-or γ-picolines). All these coordination compounds have been characterized by elemental analyses, molecular weight, molar conductance, magnetic susceptibility, infrared and electronic spectra. The infrared studies suggest that the FFAAPS behaves as a neutral tridentate ligand with N, N, O donor while α-, β-or γ-picoline is coordinated to the lanthanide(III) ions via heterocyclic N-atom. Nitrates are bicovalently bonded in these compounds. From the electronic spectral data, nephelauxetic effect (β), covalence factor (b 1/2 ), Sinha parameter (δ%) and the covalence angular overlap parameter (η) have been calculated. Thermal stabilities of these complexes have been studied by thermogravimetric analysis. The coordination number of lanthanide(III) ions in the present compound is found to be ten. The antibacterial studies screening of the primary ligand FFAAPS and the complexes showed that the present complexes have moderate antibacterial activities.

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Crystal structure of thorium nitrate pentahydrate by neutron diffraction

Cited by 84 publications

References 13 publications

The crystal structure of tetranitratobis(triphenylphosphine oxide)thorium(IV)

The crystal structure of tetranitratobis(triphenylphosphine oxide)thorium(IV)

Structure du nitrate de thorium(IV) tétrahydraté

Studies on the Effect of Picolines on the Stereochemistry of Lanthanide(III) Nitrate Coordination Compounds of 4[N-Furfural)amino]antipyrine Semicarbazone and Antibacterial Activities

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