(Z)-1-[2-(Triarylstannyl)vinyl]-1-cycloheptanols: Synthesis, characterization, halodemetallation and crystal structures
摘要:
The synthesis and characterization by H-1, C-13, Sn-119 Mossbauer spectroscopy of (Z)-1-[2-(triphenylstannyl)vinyl]-1-cycloheptanol, CH2(CH2)(5)C(OH)CH=CHSnPh(3) (1), and (Z)-1-[2-(tri-p-tolylstannyl)vinyl]-1-cycloheptanol, CH2(CH2)(5)C(OH)CH=CHSn(p-tol)(3) (2), are described, together with their halodemetallation by I-2, Br-2 and ICI1 to yield derivatives of the types CH2(CH2)(5)C(OH)CH=CHSnAr(3-n)X(n) (Ar = phenyl or p-tolyl, n = 1, 2; X = I, Br, CI, respectively). The solid-state structures of four compounds been determined by X-ray diffraction analysis. In the crystals of CH2(CH2)(5)C(OH)CH=CHSnPh(3) (1) and CH2(CH2)(5)C(OH)CH=CHSn(p-tol)(3) (2) the Sn atom has a tetrahedral geometry distorted towards trigonal bipyramid as a consequence of a close intramolecular contact with the hydroxyl O(1) atom of 2.742(3) Angstrom and 2.768(3) Angstrom respectively. A trigonal bipyramidal geometry is found in CH2(CH2)(5)C(OH)CH=CHSn(p-tol)Br-2 (12) and CH2(CH2)(5)C(OH)CH=CHSn(p-tol)(2)Cl (4), in which significant Sn-O(1) interactions are noted [2.437(8) Angstrom and 2.407(8) Angstrom, respectively].
(Z)-1-[2-(Triarylstannyl)vinyl]-1-cycloheptanols: Synthesis, characterization, halodemetallation and crystal structures
摘要:
The synthesis and characterization by H-1, C-13, Sn-119 Mossbauer spectroscopy of (Z)-1-[2-(triphenylstannyl)vinyl]-1-cycloheptanol, CH2(CH2)(5)C(OH)CH=CHSnPh(3) (1), and (Z)-1-[2-(tri-p-tolylstannyl)vinyl]-1-cycloheptanol, CH2(CH2)(5)C(OH)CH=CHSn(p-tol)(3) (2), are described, together with their halodemetallation by I-2, Br-2 and ICI1 to yield derivatives of the types CH2(CH2)(5)C(OH)CH=CHSnAr(3-n)X(n) (Ar = phenyl or p-tolyl, n = 1, 2; X = I, Br, CI, respectively). The solid-state structures of four compounds been determined by X-ray diffraction analysis. In the crystals of CH2(CH2)(5)C(OH)CH=CHSnPh(3) (1) and CH2(CH2)(5)C(OH)CH=CHSn(p-tol)(3) (2) the Sn atom has a tetrahedral geometry distorted towards trigonal bipyramid as a consequence of a close intramolecular contact with the hydroxyl O(1) atom of 2.742(3) Angstrom and 2.768(3) Angstrom respectively. A trigonal bipyramidal geometry is found in CH2(CH2)(5)C(OH)CH=CHSn(p-tol)Br-2 (12) and CH2(CH2)(5)C(OH)CH=CHSn(p-tol)(2)Cl (4), in which significant Sn-O(1) interactions are noted [2.437(8) Angstrom and 2.407(8) Angstrom, respectively].