The structure analysis of triaryl derivatives of the group V elements

Соболев, А. Н.; Romm, I. P.; Chernikova, N. Yu.; Belsky, V. K.; Gur'yanova, E. N.

doi:10.1016/0022-328x(81)85007-3

Cited by 14 publications

(10 citation statements)

References 8 publications

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“…The structural parameters of the phenyl ring are as expected. In summary, as it has been reported earlier, the p-substituted triphenylarsine and p-substituted triphenylstibine derivatives are not influenced by the value of the valence angle C-As-C or C-Sb-C [3,9] .On the contrary, the presence of two methyl groups in the 2-and 6-positions of the phenyl rings leads to an increase of these angles [2,10]. But the presence of only one methyl group in the ortho position is not able to influence the C-Sb-C angle as it is found in both the crystal forms.…”

Section: Resultssupporting

confidence: 53%

Crystal Structures of Tri(o-Tolyl)stibine in Two Crystal Forms

Sharma¹,

Cabrera²,

Rosas³

et al. 1998

Main Group Metal Chemistry

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Section: Resultssupporting

confidence: 53%

Crystal Structures of Tri(o-Tolyl)stibine in Two Crystal Forms

Sharma¹,

Cabrera²,

Rosas³

et al. 1998

Main Group Metal Chemistry

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“…those of the mononuclear tris(neopentyl)arsenic (1.998(10) Å), 28 [As(2,4,6-(i-Pr) 3 C 6 H 2 ) 3 ] (1.986(7) Å), 29 and perhaps especially the As(C 3 H 5 ) 3 ligands in [PdCl 2 {As(C 3 H 5 ) 3 } 2 ] (1.96(1) Å). 27 The average C−As−C′ angle of 100.59(2)°in 1 is somewhat wider than that found in tris(neopentyl)arsenic (94.6(4)°) 28 but is similar to that in [As(4-MeC 6 H 4 ) 3 ] (99.3(2)°); 30 the values in tris(mesityl)arsenic (107.6(4)°) 31 and [As(2,4,6-(i-Pr) 3 C 6 H 2 ) 3 ] (109.2(2)°) 29 are notably larger. The differences have been ascribed to steric crowding.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Mechanochemical Influence on the Stereoselectivity of Halide Metathesis: Synthesis of Group 15 Tris(allyl) Complexes

et al. 2016

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The stereochemical outcomes of reactions conducted in solution and those under mechanochemical conditions need not be the same; this is a well-established observation in organic synthesis, but few examples are known in organometallic systems. Halide metathesis is now shown to be a type of mechanochemical reaction that can produce different ratios of stereoisomers depending on whether the reagents are dissolved or ball-milled. Trihalides of As (X = I), Sb (X = Cl), and Bi (X = Cl) react with K[A′] (A′ = 1,3-(SiMe3)2C3H3) (As, Sb) or [AlA′3] (Bi) to generate the tris(allyl) complexes [EA′3]. All three complexes are found in two diastereomeric forms of C 1 (R,S,S) and C 3 (R,R,R) symmetry, and mechanochemical synthesis increases the C 1:C 3 ratio relative to that produced in hexanes solution (up to 3.3× in the case of [AsA′3]). The stereoselectivity of the metathesis in the solid state can be correlated with the asymmetric environment found in the group 15 trihalides; mechanochemical induction provides a new tool for influencing this important class of synthetic reactions.

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“…1) (17). It is worth noting that the As-C (11) bond distance (1.946(3) A) of the metallated ring is shorter than eithef the As-C (21) or As-C(31) bonds and is shorter than that observed for the As-C bond distance in free A~( m e s )~ (ave6-age 1.976(5) A) (16). The Pd-As bond distance (2.437(1) A) appears to be longer than that measured for the Pd-As bong distance in t r a n~-[ P d C l~( A s P h~)~I , which is reported as 2.42 A (21).…”

mentioning

confidence: 84%

Cyclopalladation of trimesitylarsine. The X-ray crystal structure for

Alyea¹,

Ferguson²,

Malito³

et al. 1988

Can. J. Chem.

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(1), Pd-P 2.318(1), Pd-C 2.056(3), and Pd-As 2.437(1) A; As-Pd-C196.5(1), CI-Pd-P 90.9(1), P-Pd-C 93.7(1), As-Pd-C 78.9(1), As-Pd-P 172.6(1), and CI-Pd-C 171.7(1)". The average C-P-C angle (104.3(1)") is smaller than expected and is rationalized on the basis of steric effects operative within the complex. Pd-P 2,318(1), Pd-C 2,056(3) et Pd-As 2,437(1) A; As-Pd-C1 96,5(1), CI-Pd-P 90,9(1), P-Pd-C 93,7(1), As-Pd-C 78,9(1), As-Pd-P 172,6(1) et C1-Pd-C 171,7(1)". L'angle C-P-C moyen (104,3(1)") est plus faible que prevu et on rationalise ce fait sur la base d'effets sttriques operant a l'intkrieur du complexe.[Traduit par la revue]

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The structure analysis of triaryl derivatives of the group V elements

Cited by 14 publications

References 8 publications

Crystal Structures of Tri(o-Tolyl)stibine in Two Crystal Forms

Crystal Structures of Tri(o-Tolyl)stibine in Two Crystal Forms

Mechanochemical Influence on the Stereoselectivity of Halide Metathesis: Synthesis of Group 15 Tris(allyl) Complexes

Cyclopalladation of trimesitylarsine. The X-ray crystal structure for

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