Synthesis and structural characterization of (THF)3Na{(SnC6H3-2,6-Trip2)2} (Trip = C6H2-2,4,6-i-Pr3):: effects of cation-anion association on Sn-Sn multiple bonding

被引:24
作者
Pu, LH [1 ]
Haubrich, ST [1 ]
Power, PP [1 ]
机构
[1] Univ Calif Davis, Dept Chem, Davis, CA 95616 USA
基金
美国国家科学基金会;
关键词
tin; multiple bonding; crystal structure;
D O I
10.1016/S0022-328X(98)01191-7
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The synthesis and structural characterization of the contact ion-pair species (THF)(3)Na((SnC6H3-2,6-Trip(2))(2)) (1) are described. The compound 1 was synthesized by the reduction of sn(Cl)C6H3-2,6-Trip(2) with sodium anthracenide in THF. Its UV-vis and EPR spectra are very similar to those previously reported for the solvent separated ion pairs [K(THF)(6)] [(SnC6H3-2,6-Trip(2))(2)] and [K(dibenzo-18-crown-6)(THF)(3)] [(SnC6H3-2,6-Trip(2))(2)]. The X-ray crystal structure of 1 reveals an Sn-Sn distance 2.8107(13)Angstrom and an Na-Sn bond length of 3.240(7)Angstrom with C-Sn-Sn angles of ca. 98 degrees. The Sn-Sn distance and tin geometry are very similar to those previously observed. These similarities lead to the conclusion that the Sn-Sn bonding is affected only in a minor way by sodium coordination. Crystal data at 130 K with CuK alpha (lambda = 1.54178 Angstrom) radiation; 1, a = 22.142(5), b = 15.845(4), c = 23.425(7)Angstrom, beta = 107.83(2)degrees Z = 4, monoclinic, space group C2/c, R1 = 0.0615 for 4872 (I = 2 sigma(I)) data. (C) 1999 Elsevier Science S.A. All rights reserved.
引用
收藏
页码:100 / 102
页数:3
相关论文
共 15 条
[1]   The use of density functional theory to understand and predict structures and bonding in main group compounds with multiple bonds [J].
Cotton, FA ;
Cowley, AH ;
Feng, XJ .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (08) :1795-1799
[2]   SYNTHESIS AND CHARACTERIZATION OF NEW THIOLATO DERIVATIVES OF LITHIUM, MAGNESIUM, AND ZINC - EXAMPLES OF 2-COORDINATE LITHIUM AND ZINC SPECIES LIGATED BY SULFUR [J].
ELLISON, JJ ;
POWER, PP .
INORGANIC CHEMISTRY, 1994, 33 (19) :4231-4234
[3]  
HOPE H, 1987, ACS S SERIES, V357
[4]   Tris(trimethylsilyl)silanides of the heavier alkali metals - A structural study [J].
Klinkhammer, KW .
CHEMISTRY-A EUROPEAN JOURNAL, 1997, 3 (09) :1418-1431
[5]   A METALLIC SYSTEM WITH AROMATIC CHARACTER - SYNTHESIS AND MOLECULAR-STRUCTURE OF NA-2[(MES(2)C(6)H(3))GA](3) (MES=2,4,6-ME(3)C(6)H(2)) - THE FIRST CYCLOGALLANE [J].
LI, XW ;
PENNINGTON, WT ;
ROBINSON, GH .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1995, 117 (28) :7578-7579
[6]   Donor-free alkali metal thiolates: Synthesis and structure of dimeric, trimeric, and tetrameric complexes with sterically encumbered terphenyl substituents [J].
Niemeyer, M ;
Power, PP .
INORGANIC CHEMISTRY, 1996, 35 (25) :7264-7272
[7]   Synthesis and characterization of [Sn-2{C6H3-2,6(2,4,6-i-Pr3C6H2)(2)}(2)](-center dot): A singly reduced valence isomer of a ''distannyne'' [J].
Olmstead, MM ;
Simons, RS ;
Power, PP .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (48) :11705-11706
[8]   XABS2 - AN EMPIRICAL ABSORPTION CORRECTION PROGRAM [J].
PARKIN, S ;
MOEZZI, B ;
HOPE, H .
JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1995, 28 :53-56
[9]   Synthesis and characterization of Na2{Ge(C6H3-2,6-Trip2)}2 and K2{Sn(C6H3-2,6-Trip2)}2 (Trip = -C6H2-2,4,6-i-Pr3):: A new class of multiply bonded main group compounds [J].
Pu, LH ;
Senge, MO ;
Olmstead, MM ;
Power, PP .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (48) :12682-12683
[10]  
REIDEL D, 1993, INT TABLES XRAY CRYS, VC