Crystal structures of tetrakis(ammoniomethyl)methane tetrachloride, C(CH2NH3)4Cl4, and disulfate, C(CH2NH3)4(SO4)2

Cameron, T. Stanley; Chute, W. J.; Knop, Osvald

doi:10.1139/v85-096

Cited by 8 publications

(7 citation statements)

References 4 publications

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“…1970, 9, 351. (7) tempts by us to obtain single crystals of the complex prepared in this manner have failed. However, a comparison between the powder pattern calculated from the single crystal data and that obtained by using a sample prepared by the Wilkinson method (Figure 1) confirmed that the two compounds are indeed the same.…”

Section: Methodsmentioning

confidence: 99%

A series of edge-sharing bioctahedral, M-M bonded molecules: nonmonotonic bond length variation and its interpretation

Chakravarty¹,

Cotton²,

Diebold³

et al. 1986

J. Am. Chem. Soc.

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Section: Methodsmentioning

confidence: 99%

A series of edge-sharing bioctahedral, M-M bonded molecules: nonmonotonic bond length variation and its interpretation

Chakravarty¹,

Cotton²,

Diebold³

et al. 1986

J. Am. Chem. Soc.

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“…13) that all H 2 0 hydrogens in a crystalline salt hydrate are always engaged in H-bonding, LiTBw is a three-dimensional, completely H-bonded polymer in which all the H 2 0 hydrogens are bonded to phenyl groups and all the phenyl groups are involved in 0-H ...p henyl bonds. In this respect LiTBw resembles BeSw (8,9) and [C(CH2-NH,)~]~+(so,~-), (14), both of which also contain complete three-dimensional systems of H-bonds. However, while the Li and Be compounds dissolve readily in water, the high ion charges in the tetrakis(ammoniomethy1) sulfate conspire to make it very insoluble.…”

Section: Hydrogen Bondingmentioning

confidence: 99%

“…ters z(B) and z(Li) turned out to be remarkably close to multiobserved reflections were carefully examined for possible conples of 118, and even the corresponding x and y values were not sistency with the maximal subgroups of these cubic groups, 14 of the two space groups, and the corresponding R,,,, -60% values calculated for the latter were clearly unacceptable. The departures of the B and Li positions from multiples of 118 are therefore genuine and the ion packing in LiTBw may thus be regarded as the result of a frustrated though nearly successful attempt to achieve a higher symmetry.…”

mentioning

confidence: 99%

Crystal chemistry of tetraradial species. Part 6. Embarras de richesses: lithium cation coordinated by eight O—H … phenyl bonds

Bakshi¹,

Sereda²,

Knop³

et al. 1994

Can. J. Chem.

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Lithium tetraphenylborate tetrahydrate, [Li(OH2)4]BPh4 (LiTBw; tetragonal, I41/a, a = 27.566(2) Å, c = 12.228(2) Å, Z = 16) is remarkable in that the four H2O molecules coordinating the Li+ ion all form O—H …π hydrogen bonds to the phenyl groups of the anion. LiTBw thus appears to be the first reported example of such an exhaustive O—H …π coordination and can be described as a 3-dimensional, completely H-bonded polymer in which all the H2O hydrogens are bonded to phenyl groups and all the phenyl groups are involved in O—H … phenyl bonds. Six of the O—H … phenyl bonds are essentially normal and two are highly bent, possibly bifurcated. The existence of the H-bonds has been corroborated from variable-temperature FT-ir spectra of weakly deuterated LiTBw. The O—Li—O angles in the LiO4 coordination tetrahedron (of symmetry C1) exhibit large departures from the tetrahedral angle, two of the angles bisected by a quasi-S4 axis being 118.3° and 122.5°, respectively. An ab initio (6-31G*) investigation of the Li(OH2)4+ and Be(OH2)42+ cations has shown that such large O—M—O angles are to be expected even in the free ions and are thus not necessarily the result of packing effects. A detailed comparison with several Li(OH2)4+ and Be(OH2)42+ salts provides a rationale for the observed M(OH2)4n+ (M = Li, Be) geometries.

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“…A structurally related ion is the protonated amine, tetrakis-(aminomethy1)methane [H4(tam)14+, reported by Cameron et al (3). This cation is described as adopting a planar rather than globular geometry, with the cation and anions occupying narrow "slabs" within the unit cell.…”

Section: Crystal Structuresmentioning

confidence: 99%

Isolation and characterization of polydentate ligands derived from the reaction of pentaerythrityltetrabromide and ethylenediamine

McAuley¹,

Beveridge²,

Subramanian³

et al. 1989

Can. J. Chem.

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A. MCAULEY, K . BEVERIDGE, S. SUBRAMANIAN, and T. W. WHITCOMBE. Can. J . Chem. 67, 1657Chem. 67, (1989. Reaction of pentaerythrityltetrabromide with ethylenediamine yields three product amines. These have been isolated by separation of the corresponding Ni2+ complexes. The free amine hydrochlorides have been obtained by acid hydrolysis of the ~i~+ species and have been characterized by nuclear magnetic resonance and mass spectroscopy.

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Crystal structures of tetrakis(ammoniomethyl)methane tetrachloride, C(CH₂NH₃)₄Cl₄, and disulfate, C(CH₂NH₃)₄(SO₄)₂

Cited by 8 publications

References 4 publications

A series of edge-sharing bioctahedral, M-M bonded molecules: nonmonotonic bond length variation and its interpretation

A series of edge-sharing bioctahedral, M-M bonded molecules: nonmonotonic bond length variation and its interpretation

Crystal chemistry of tetraradial species. Part 6. Embarras de richesses: lithium cation coordinated by eight O—H … phenyl bonds

Isolation and characterization of polydentate ligands derived from the reaction of pentaerythrityltetrabromide and ethylenediamine

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