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31
DOI: 10.14529/chem150403
INTERACTION OF PENTAPHENYLANTIMONY
WITH ACETYLENEDICARBOXYLIC ACID.
MOLECULAR STRUCTURE OF BIS(TETRAPHENYLANTIMONY)
ACETYLENEDICARBOXILATE
V.V. Sharutin, [email protected]
O.K. Sharutina, [email protected]
Yu.O. Gubanova, [email protected]
South Ural State University, Chelyabinsk, Russian Federation
5is(tetraphenylantimony) acetylenedicarboxilate (1) has been synthesized by the interaction of pentaphenylantimony with acetylenedicarboxylic acid (mole ratio 2:1 or 1:1) in toluene. In molecule 1 the acid anion has the bridging role and bonds P^Sb fragments. The antimony atoms have distorted trigonal bipyramidal coordination with the oxygen atom in the axial position. The Sb-O bond lengths are 2.287(4) and 2.389(4) A, the Sb-C bond lengths are 2.110(7)-2.179(6) A and 2.108(6)-2.165(6) A.
Keywords: pentaphenylantimony, acetylenedicarboxylic acid, bis(tetraphenyl-antimony) acetylenedicarboxilate, molecular structure, X-ray diffraction analysis.
Introduction
It is known that the interaction of pentaarylantimony with dicarboxylic acid can give two types of compounds: acidic tetraarylantimony carboxilates and bis(tetraarylantimony) carboxilates [1-4]. According to the X-ray diffraction data, the coordination of antimony atoms in these types of molecules is significantly different. In the first case there is a tendency of the Ar4Sb fragment to the transformation into the tetrahedric configuration, which is accompanied by increase of the distance between the antimony atom and the oxygen atom of the monodentate carboxylic ligand, which has the bond of coordinating character [1-3].
In binuclear bis(tetraarylantimony) carboxilates the antimony atom has a slightly distorted trigonal bipyramidal coordination [SbC4O]. As a rule, the bridging carboxilyc ligand has anisobidental type of coordination caused by intramolecular interactions Sb"O=C between the antimony atoms and carbonyl oxygen atoms [2, 4-6]. Only oxalate ligand is coordinated to the antimony atom almost symmetrically, thus the antimony atom coordination transforms into the octahedral one [7].
In the continuation of our research of organoantimony dicarboxylic acid derivatives the reactions of pentaphenylantimony with acetylenedicarboxylic acid have been studied. The product structure has been determined by the X-ray diffraction analysis.
Experimental
Interaction of pentaphenylantimony with acetylenedicarboxylic acid. A) A mixture of 0.200 g (0.394 mmol) of pentaphenylantimony and 0.022 g (0.197 mmol) of acetylenedicarboxylic acid in 5 mL of toluene was kept in a sealed glass ampoule at room temperature for 24 h. The solution was concentrated, the crystals were filtered off and dried. The substance was isolated as 0.173 g (90 %) of colorless crystals 1 with Tdec = 178 °C. Found, %: C 64.09; H 4.23. For C52H^O4Sb2, anal. calcd, %: C 64.20; H 4.11. IR spectrum (v, cm-1): 3401, 3057, 2989, 1632, 1612, 1577, 1479, 1435, 1389, 1322, 1289, 1184, 1158, 1067, 1021, 996, 774, 731, 691, 670, 460.
B) A mixture of 0.200 g (0.394 mmol) of pentaphenylantimony and 0.044 g (0.394 mmol) of acetylenedicarboxylic acid in 5 mL of toluene was heated in a sealed glass ampoule in a boiling water bath for 15 min. Large crystals of bis(tetraphenylantimony) carbonate with Tm = 234 °C were observed on the ampoule walls during cooling. IR spectrum (v, cm-1): 3050, 1577, 1472, 1429, 1382, 1332, 1304, 1264, 1186, 1157, 1067, 1021, 997, 830, 730, 691, 653, 457.
The supernatant toluene solution was concentrated, the crystals were filtered off and dried. The substance was isolated as 0.149 g (76 %) of colorless crystals of tetraphenylantimony propiolate with
Tm = 174 °C (with decomposition). Found, (%): C 64.81; H 4.29. For C27H21O2SK anal. calcd, (%): C 64.96; H 4.21. IR spectrum (v, cm1): 3277, 3053, 3010, 2990, 2917, 2591, 2361, 2178, 2091, 1967, 1885, 1819, 1621, 1575, 1562, 1477,1433, 1377, 1333, 1301, 1187, 1158, 1070, 1057, 1020, 997,883, 782, 737, 693, 658, 643, 601, 586, 462, 447.
IR spectra were recorded in KBr pellets on the IR Fourier-transform spectrometer Bruker Tensor 27.
The X-ray diffraction analyses of crystal 1 was performed on the Bruker D8 Quest diffractometer (Mo Ka-radiation, X = 0.71073 A, graphite monochromator). The data collection and editing as well as the refinement of unit cell parameters and the absorption accounting were carried out using SMART and SAINT Plus program packages [8]. All calculations for the structure determination and refinement were carried out using the SHELXTL/PC [9] and OLEX2 [10] programs packages. The structures were determined by the direct method and refined by least-squares method calculations in anisotropic approximation for non-hydrogen atoms. Selected crystallographic data and structure refinement results for compounds I and II are given in Table 1, and selected bond lengths and bond angles are listed in Table 2.
The full tables of atomic coordinates, bond lengths, and bond angles were deposited with the Cambridge Crystallographic Data Centre (CCDC 994821; [email protected]; http: //www.ccdc.cam .ac .uk).
Table 1
Crystallographic data and the experimental and structure refinement parameters for compound 1
Parameter Value
Empirical formula C52H40O4Sb2
Formula weight 972.34
T, K 296(2)
Crystal system Monoclinic
Space group P21/c
a, A 10.0115(4)
b, A 21.1868(8)
c, A 22.6148(9)
a, deg 90.00
P, deg 91.530(2)
Y, deg 90.00
V, A3 4795.2(3)
Z 4
p(calcd.), g/cm3 1.347
1, mm1 1.167
F(000) 1944.0
Crystal size, mm 0.92x0.18x0.09
28 Range of data collection, deg 6.64 - 46.62°
Range of refraction indices -9 < h < 11, -23 < k < 22, -25 < l < 23
Measured reflections 12802
Independent reflections 6525
Rint 0.0282
Refinement variables 523
GOOF 1.095
R factors for F2 > 2ct(F2) R1 = 0.0401, wR2 = 0.1132
R factors for all reflections R1 = 0.0576, wR2 = 0.1226
Residual electron density (min/max), e/A3 1.02/-0.41
Sharutin V.V., Sharutina O.K., Gubanova Yu.O.
Interaction of pentaphenylantimony with acetylenedicarboxylic acid...
Table 2
Selected bond lengths and bond angles in the structure of compound 1
Bond d, À Angle ra, deg
Sb(1)-O(1) 2.287(4) C(1)Sb(1)O(1) 84.7(2)
Sb(1)-C(1) 2.110(7) C(1)Sb(1)C(31) 96.7(2)
Sb(1)-C(31) 2.179(6) C(1)Sb(1)C(11) 114.6(2)
Sb(1)-C(11) 2.118(6) C(1)Sb(1)C(21) 124.6(2)
Sb(1)-C(21) 2.133(6) C(31)Sb(1)O(1) 175.20(18)
Sb(2)-O(3) 2.389(4) C(11)Sb(1)O(1) 81.91(18)
Sb(2)-C(51) 2.108(6) C(11)Sb(1)C(31) 93.3(2)
Sb(2)-C(41) 2.119(6) C(11)Sb(1)C(21) 117.8(2)
Sb(2)-C(61) 2.102(6) C(21)Sb(1)O(1) 85.49(19)
Sb(2)-C(71) 2.165(6) C(21)Sb(1)C(31) 97.3(2)
C(7)-O(1) 1.293(7) C(51)Sb(2)O(3) 89.54(19)
C(7)-O(2) 1.212(7) C(51)Sb(2)C(41) 119.6(2)
C(10)-0(3) 1.255(7) C(51)Sb(2)C(71) 94.5(2)
C(10)-0(4) 1.224(7) C(41)Sb(2)O(3) 82.4(2)
Sb(1)-O(2) 3.297(6) C(41)Sb(2)C(71) 98.5(2)
Results and Discussion
We have found that the reaction of pentaphenylantimony with dicarboxylic acid (mole ratio 2:1 or 1:1) proceeds in toluene solution at room temperature with the substitution of hydrogen atoms in two carboxyl groups and the formation of ¿«(tetraphenylantimony) acetylenedicarboxilate (1). The yield of compound 1 is up to 90%:
2 PhsSb + HOC(O)C=CC(O)OH ^ Ph4Sb0C(0)C^C(0)C0SbPh4 + 2 PhH
1
Only one carboxyl group reacts with pentaphenylantimony after short-duration heating of equimolar quantities in toluene solution. The second group is decarboxylated in this case.
PhsSb + HOC(O)C=C(O)COH ^ Ph4Sb0C(0)C=CH + PhH + CO2
The yield of tetraphenylantimony propiolate isolated from the reaction mixture is 76%. Its IR spectrum, melting point and parameters of crystal cell correspond to the similar characteristics of the compound synthesized from pentaphenylantimony and propiolic acid [11]. ^«(tetraphenylantimony) carbonate (Ph4Sb)2C03 is the second product of this reaction with the yield about 10%. This product has been identified by its melting point and IR spectrum. As shown by X-ray diffraction, the obtained ¿«(tetraphenylantimony) carbonate has triclinic modification described in the paper [12].
According to the X-ray diffraction data, the acid anion in molecule 1 has the bridging role and bonds Ph4Sb fragments. The Sb(1,2) atoms have distorted trigonal bipyramidal coordination with car-boxylate and phenyl ligands in the axial positions (Fig. 1).
C(53)
C(51)
C(45)
CC64)
Fig. 1. The structure of compound 1
The axial angles OSb(1,2)C are equal to 175.2(2)° and 174.7(2)°. The sums of the CSbC angles in the equatorial planes are 357.0(2)° and 356.2(2)°, respectively. There is deviation of Sb(1,2) atoms from the equatorial plane towards the carbon atom in the axial position up to 0.218(2) A and 0.237(2) A. The angles between the axial and equatorial bonds of OSb(1,2)C are less than 90° (81.9(2)-85.5(2)°, (78.8(2)-89.5(2)°), for CSb(1,2)C they are more than 90° (93.3(2)-97.3(2)°, 94.5(2)-98.5(2)°). The length of Sb(1,2)-C equatorial bonds changes in the ranges 2.110(7)-2.133(6) A, 2.108(6)-2.119(6) A. The axial distances Sb(1,2)-C (2.179(6) A and 2.165(6) A) are greater than equatorial ones. The Sb(1)-O(1) (2.287(4) A) and Sb(2)-O(3) (2.389(4) A) bonds are longer than the sum of covalent radii of antimony and oxygen (2.05 A [13]). As one would expect, the C(7)-0(1) (1.293(7) A), C(10)-0(3) (1.255(7) A) distances in the carboxyl group are greater than the C(7)-0(2) (1.212(7) A) and C(10)-0(4) (1.224(7) A) distances. In structure 1 bidentate properties of the carboxylate ligands almost do not appear. The intramolecular Sb(1)---O(2) and Sb(2)---O(4) distances are 3.297(6) and 3.794(6) A, while the sum of antimony and oxygen van der Waals radii equals 3.70 A [13]. For comparison: in the bis(tetraphenylantimony) maleinate molecule the Sb-O and Sb—O distances equal 2.206, 2.218 A and 3.236, 3.259 A [2].
The torsion angle in the dicarboxylic acid anion 0(2)C(7)C(10)0(4) is -50.3(7)°. Acetylene fragment has almost linear structure: the angles C(7)C(8)C(9) and C(10)C(9)C(8) are 177.8(7)° and 175.2(7)°, the distance C(8)-C(9) (1.177(9) A) corresponds to the triple bond.
The structural organization of the crystal is formed with the participation of weak hydrogen bonds of (Ph)C-H-O(=C) type.
Conclusions
Thus, the interaction between pentaphenylantimony with acetylenedicarboxylic acid has the specific feature: under mild conditions both carboxylic groups react. We did not succeed in isolation of acidic tetraphenylantimony carboxilate. Even short-duration heating of reaction mixture is accompanied by the decarboxylation of a carboxyl group in the acid and the formation of tetraphenylantimony propiolate.
In the bis(tetraphenylantimony) acetylenedicarboxilate molecule the carboxylate groups are characterized by the monodental type of the bond.
References
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4. Sharutin V.V., Sharutina O.K. Bis(tetraphenylantimony) Succinate, Malate and Tartrate: Synthesis and Structures. Russian Journal of Coordination Chemistry, 2014, vol. 40, no. 9, pp. 643-647. DOI: 10.1134/S1070328414090073.
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6. Sharutin V.V., Sharutina O.K., Bondar' E.A., Senchurin V.S., Pakusina A.P., Gatilov Ju.V., Ado-nin N.Ju., Starichenko V.F. Synthesis and Structure of Bis(tetraphenylantimony) Tetrafluorophthalate. Russian Journal of General Chemistry, 2002, vol. 72, no. 12, pp. 1920-1924. DOI: 10.1023/A: 1023411228493.
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7. Millington P.L., Sowerby D.B. Phenylantimony (V) Oxalates: Isolation and Crystal Structures of [SbPh4][SbPh2(ox)2], [SbPh3(OMe)]2ox and (SbPh4)2ox. J. Chem. Soc., Dalton Trans., 1992, no. 7, pp. 1199-1204.
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Received 18 May 2015
УДК 549.242+547.53.024+547.584+548.312.5 DOI: 10.14529/chem150403
ВЗАИМОДЕЙСТВИЕ ПЕНТАФЕНИЛСУРЬМЫ С АЦЕТИЛЕНДИКАРБОНОВОЙ КИСЛОТОЙ. МОЛЕКУЛЯРНАЯ СТРУКТУРА АЦЕТИЛЕНДИКАРБОКСИЛАТА БИС(ТЕТРАФЕНИЛСУРЬМЫ)
B.В. Шарутин, О.К. Шарутина, Ю.О. Губанова
Южно-Уральский государственный университет, г. Челябинск
Взаимодействием пентафенилсурьмы с ацетилендикарбоновой кислотой (2:1 или 1:1 мольн.) в толуоле получен ацетилендикарбоксилат бис(тетрафенилсурьмы) (1). В молекуле 1 остаток кислоты выполняет мостиковую функцию, соединяя фрагменты PhjSb. Атомы сурьмы имеют искаженную тригонально-бипирамидальную координацию с атомом кислорода в аксиальном положении. Длина связей Sb-O 2.287(4) и 2.389(4) A, Sb-C 2.110(7)-2.179(6) А и 2.108(6)-2.165(6) А.
Ключевые слова: пентафенилсурьма, ацетилендикарбоновая кислота, ацетилендикарбоксилат бис(тетрафенилсурьмы), молекулярная структура, рентгенострук-турный анализ.
Литература
1. Синтез и строение кислого фталата тетрафенилсурьмы / В.В. Шарутин, О.К. Шарутина, И.Г. Мельникова и др. // Известия Академии наук. Серия Химическая. - 1996. - Т. 8. - Вып. 10. -
C.2082-2085.
2. Reactions of Pentaphenylantimony with Dicarboxyclic Asids / V.V. Sharutin, O.K. Sharutina, A.P. Pakusina et al. // J. Organometal. Chem. - 1997. - V. 536-537. - № 1-2. - P. 87-92. DOI: 10.1016/s0022-328x(96)06463 -7.
3. Шарутин, В.В. Синтез и строение кислого малоната тетрафенилсурьмы / В.В. Шарутин, В С. Сенчурин, О.К. Шарутина // Журн. неорган. химии. - 2014. - Т. 59. -№ 2. - С. 247-250. DOI: 10.7868/S0044457X14020184.
4. Шарутин, В.В. Синтез и строение сукцината, малата и тартрата бис(тетрафенилсурьмы) / В.В. Шарутин, О.К. Шарутина // Корд. химия. - 2014. - Т. 40. - № 9. - С. 559-563. DOI: 10.7868/S0132344X14090072.
5. Синтез, строение и реакции ц-оксо-бис(тетрафенилсурьмы) / В.В. Шарутин, О.К. Шарутина, В.С. Сенчурин и др. // Корд. химия. - 2001. - Т. 27. - № 9. - С. 710-716.
6. Синтез и строение тетрафторфталата бис(тетрафенилсурьмы) / В.В. Шарутин, О.К. Шарутина, Е.А. Бондарь и др. // Журн. общ. химии. - 2002. - Т. 72. - № 12. - С. 2029-2032.
7. Millington, P.L. Phenylantimony (V) Oxalates: Isolation and Crystal Structures of [SbPh4][SbPh2(ox)2], [SbPh3(OMe)box and (SbPh^ox. / P.L. Millington, D.B. Sowerby // J. Chem. Soc., Dalton Trans. - 1992. - N. 7. - P. 1199-1204.
8. Bruker (1998). SMART and SAINT-Plus. Versions 5.0. Data Collection and Processing Software for the SMART System. Bruker AXS Inc., Madison, Wisconsin, USA.
9. Bruker (1998). SHELXTL/PC. Versions 5.10. An Integrated System for Solving, Refining and Displaying Crystal Structures From Diffraction Data. Bruker AXS Inc., Madison, Wisconsin, USA.
10. OLEX2: a Complete Structure Solution, Refinement and Analysis Program / O.V. Dolomanov, L.J. Bourhis, R.J. Gildea et al. // J. Appl. Cryst. - 2009. - V. 42. - P. 339-341. DOI: 10.1107/S0021889808042726.
11. Шарутин, В.В. Синтез и строение пропиолатов три- и тетрафенилсурьмы / В.В. Шарутин, О.К. Шарутина, В.С. Сенчурин // Корд. химия. - 2014. - Т. 40. - № 2. - С. 108-112. DOI: 10.7868/S0132344X14020108.
12. Ferguson, G. The Crystal and Molecular Structure of ^-Carbonato-Bis(tetraphenylantimony): a System Containing Penta- and Hexacoordinated Antimony / G. Ferguson, D.M. Hawley // Acta Crystal-logr. - 1974. - V. 30B. - N. 1. - P. 103-111.
13. Covalent Radii revisited / B. Cordero, V. Gomez, A.E. Platero-Prats et al. // Dalton Trans. -2008. - P. 2832-2838. DOI: 10.1039/b801115j.
Шарутин Владимир Викторович - доктор химических наук, профессор, старший научный сотрудник УНИД, Южно-Уральский государственный университет. 454080, г. Челябинск, пр. им. В.И. Ленина, 76. E-mail: [email protected]
Шарутина Ольга Константиновна - доктор химических наук, профессор, кафедра аналитической химии, Южно-Уральский государственный университет. 454080, г. Челябинск, пр. им. В.И. Ленина, 76. E-mail: [email protected]
Губанова Юлия Олеговна - студент химического факультета, Южно-Уральский государственный университет. 454080, г. Челябинск, пр. им. В.И. Ленина, 76. E-mail: [email protected]
Поступила в редакцию 18 мая 2015 г
ОБРАЗЕЦ ЦИТИРОВАНИЯ
Sharutin, V.V. Interaction of pentaphenylantimony with acetylenedicarboxylic acid. Molecular structure of bis(tetraphenylantimony) acetylenedicarboxilate / V.V. Sha-rutin, O.K. Sharutina, Yu.O. Gubanova // Вестник ЮУрГУ. Серия «Химия». - 2015. - Т. 7, № 4. - С. 17-22. DOI: 10.14529/chem150403
FOR CITATION
Sharutin V.V., Sharutina O.K., Gubanova Yu.O. Interaction of Pentaphenylantimony with Acetylenedicarboxylic acid. Molecular Structure of Bis(tetraphenylantimony) Acetylenedicarboxilate. Bulletin of the South Ural State University. Ser. Chemistry. 2015, vol. 7, no. 4, pp. 17-22. DOI: 10.14529/chem150403
