Structure, thermal, and infrared analyses of [NH3(CH2)3NH3]2[Ni(HP2O7)2(H2O)2] ? 4H2O

Gharbi, A.; Jouini, A.

doi:10.1007/s10870-004-7647-y

Cited by 15 publications

(16 citation statements)

References 8 publications

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“…The cis-O-M-O bond angles range from 86.67 (6) to 93.33 (6) , and the trans-O-M-O angles have values near to 180 (Table 1). These are similar to the values in other previously reported Ni II diphosphates (Essehli et al, 2005b;Tahiri et al, 2004;Gharbi & Jouini, 2004).…”

Section: Commentsupporting

confidence: 93%

“…The Ni cations are each sorrounded by two symmetryrelated diphosphate anions and two symmetry-related water molecules within a distorted octahedron. The average Ni-O bond distance of 2.0729 Å is in the range of values observed in other Ni diphosphates, such as (NH 4 Gharbi & Jouini, 2004). The cis-O-M-O bond angles range from 86.67 (6) to 93.33 (6) , and the trans-O-M-O angles have values near to 180 (Table 1).…”

Section: Commentmentioning

confidence: 56%

“…3. Its interpretation can be made on the basis of characteristic vibrations of -CH 2 -, (-NH 3 ) + , PO 3 and PO 2 groups, P-OH bond, POP bridge, and H 2 O (Essehli et al, 2005a,b,c;Gharbi & Jouini, 2004;Sarr & Diop, 1987;Fernandez, Pizarro, Mesa, Lezama, Arriortua, Olazcuaga & Rojo, 2001). Broad bands in the region 3290.3-3408.6 cm À1 show the presence of a hydrogen-bonding network.…”

Section: Commentmentioning

confidence: 99%

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Bis(ethylenediammonium) diaquabis[hydrogendiphosphato(3–)]nickelate(II): structure and vibrational spectroscopy

Essehli¹,

Bali

Lachkar³

et al. 2006

Acta Cryst E

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In the crystal structure of the title compound, (C2N2H10)2[Ni(HP2O7)2(H2O)2], each Ni cation is surrounded by two symmetry‐related diphosphate anions and two symmetry‐related water molecules within a distorted octahedron. The octahedra are connected via O—H⋯O hydrogen bonding into layers. The ethylenediammonium cations are located in the interlayer space and are connected by N—H⋯O hydrogen bonds to the anionic layers. The Ni cation and the two crystallographically independent ethylenediammonium cations are located on centres of inversion, whereas the diphosphate anion and the water molecule are located in general positions.

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Section: Commentsupporting

confidence: 93%

Section: Commentmentioning

confidence: 56%

Section: Commentmentioning

confidence: 99%

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Bis(ethylenediammonium) diaquabis[hydrogendiphosphato(3–)]nickelate(II): structure and vibrational spectroscopy

Essehli¹,

Bali

Lachkar³

et al. 2006

Acta Cryst E

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“…The two water molecules are in the axial positions, with a Co-OW distance of 2.1506 (18) Å , significantly longer than the Co-O E contacts. A similar coordination geometry around the central atom has also been observed in other M II O 6 octahedra, M II = Co or Ni, in organic diphosphate compounds (Essehli et al, 2006;Gharbi et al, 1994;Gharbi & Jouini, 2004).…”

Section: Commentsupporting

confidence: 79%

“…Incorporation of transition elements into the organic-phosphate framework is particularly interesting, not only because of their fascinating structural features, but also due to the possibility of observing interesting magnetic properties. In recent years, a limited number of transition metal-organic diphosphates has been synthesized (Gharbi et al, 1994;Gharbi & Jouini, 2004;Essehli et al, 2006).…”

Section: Commentmentioning

confidence: 99%