Distorted T shape

The C1F3 molecule has a planar distorted T-shaped structure with one short (0.1598 nm) and two long (0.1698 nm) Cl—F bonds. The angle between the two different kinds of Cl—F bonds is 87.48° [86,87]. The infrared and Raman spectra [88] and NMR [89] were measured. Gas chromatography was applied and data were obtained using a polytetrafluoroethylene-packed stainless steel column [90-92]. 

RhCl(PPh3)3] and TICIO4 (equation 6). Another can be prepared similarly from Tl[nido-7- l-c/oi o-l,2-C2BioHii -7,8-C2B9Hii]. The crystal structures of the above complexes have been determined and both contain distorted T-shaped cations. The Rh-P bonds in the dicarbaborane complex are the longer. 

CIF3 This is an XY3 interhalogen. The central Cl atom is surrounded by five electron pairs two are lone electron pairs and three are boding pairs resulting in a trigonal bipyramidal shape and a distorted T-shaped molecular geometry. 

Iodonium salts R2I+ X generally have a typical distance between iodine and the nearest anion X of 2.6-2.S A and in principle can be considered as ionic compounds with pseudo-tetrahedral geometry about the central iodine atom. However, with consideration of the anionic part of the molecule, the overall experimentally determined geometry is distorted T-shaped structure similar to the -iodanes RIX2. 

Several computational stmctural studies of iodine trifluoride have been published [11-16]. According to ab initio calculations [16], IF3 has a distorted T-shaped geometry with the axial I—F bond distance of 1.971 A, the equatorial 1—Fbond distance of 1.901 A and an Fax—I—Feq angle of 81.7°. 

BrF3 Distorted T -shaped Yellow liquid Direct... 

The molecular structures of some representive neutral interhalogens, (a) chlorine trifluoride, CIF3 (distorted T-shaped) b) bromine pentafluoride, BrFs (square pyramidal) (c) iodine heptafluoride, IF7 (pentagonal bipyramidal) and (d) diiodine hexachloride, I2CI6 (planar dimer). 

Propose a reason why IF3 should be trigonal planar rather than the expected distorted T-shape. 

Products 113—115 are isolated as thermally stable, white, microcrystalline solids. Structures of two (114 and 115) were unambiguously established by single-crystal X-ray analysis (1996MC50, 1996H47). In particular. X-ray structural data for 114 revealed the expected hypervalent iodine distorted T-shaped geometry with an endocyclic C—I—O bond angle of 78.2° and... 

Single-crystal X-ray structures have been reported for all four trifluoromethylbenziodoxoles 141, 143—145 (2007ACE754, 2006CEJ2579). X-ray structural data for the four products demonstrate typical trivalent iodine distorted T-shaped geometries. The I—CF3 bond lengths increase from... 

Acetoxybenziodazole 150 (as a solvate with acetic acid) has the expected distorted T-shaped geometry at the iodine atom with an N—I—O bond angle of 162.1°. Bond lengths to the iodine center [I—N (2.101 A), I—O (2.34 A), and I—C (2.106 A)] are aU within the range of typical single covalent bonds in organic derivatives of polyvalent iodine and are in good... 

The structures of products 203 (R = Bu ) (198 A3803) and 205 (2001JA1507) were determined by single-crystal X-ray analyses. Both structures have a distorted T-shape geometry arotmd the central iodine atom. The apical O—I—O bond angles of 203 and 205 are 144.5(1)° and 158.2(2)°,... 

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