TY - JOUR
T1 - Structure of 2-methyl-3-phenyl-3-[(tri-p-tolyl)germyl] propanoic acid, (p-CH3C6H4)3GeCH(Ph)CH(Me)CO 2H. CHCl3
AU - Imtiaz-ud-Din,
AU - Mazhar, Muhammad
AU - Ali, Saqib
AU - Dastgir, Sarim
AU - Molloy, Kieran C.
AU - Mahon, Mary F.
PY - 2002
Y1 - 2002
N2 - In the title compound, one molecule of CHCl3, is also present in each asymmetric unit. The germanium adopts a distorted tetrahedral coordination geometry [C-Ge-C: 106.5(1) - 111.7(1)o]. Ge-C bond lengths between the germanium and the three p-tolyl groups are identical within experimental error [1.951 (3) - 1.955(3) Å], however Ge-C(22) of the substituted propanoic acid is significantly longer [1.997(3) Å]. The molecule dimerises through hydrogen bonds between carboxylic acid groups, in a conventional manner. The hydrogen bond is relatively strong [O(1)...O(2′): 2.661(2); H(2A)-O(1′): 1.81(4) Å; o] and delocalisation of the double-bond character renders the two C-O bond lengths indistinguishable [C(31)-O(1): 1.255(4); C(31)-O(2): 1.260(4)Å]. The mode of dimerisation thus contrasts with the situation in the related species Cl3GeCH(Ph)CH2CO2H where chlorine atoms act as the hydrogen bond acceptors. The solvent3(CHCl3) is loosely associated with the carboxylic acid group [H(32)...O(2): 2.53 Å] though this length, along with o), rules out any meaningful hydrogen bond.
AB - In the title compound, one molecule of CHCl3, is also present in each asymmetric unit. The germanium adopts a distorted tetrahedral coordination geometry [C-Ge-C: 106.5(1) - 111.7(1)o]. Ge-C bond lengths between the germanium and the three p-tolyl groups are identical within experimental error [1.951 (3) - 1.955(3) Å], however Ge-C(22) of the substituted propanoic acid is significantly longer [1.997(3) Å]. The molecule dimerises through hydrogen bonds between carboxylic acid groups, in a conventional manner. The hydrogen bond is relatively strong [O(1)...O(2′): 2.661(2); H(2A)-O(1′): 1.81(4) Å; o] and delocalisation of the double-bond character renders the two C-O bond lengths indistinguishable [C(31)-O(1): 1.255(4); C(31)-O(2): 1.260(4)Å]. The mode of dimerisation thus contrasts with the situation in the related species Cl3GeCH(Ph)CH2CO2H where chlorine atoms act as the hydrogen bond acceptors. The solvent3(CHCl3) is loosely associated with the carboxylic acid group [H(32)...O(2): 2.53 Å] though this length, along with o), rules out any meaningful hydrogen bond.
UR - http://www.scopus.com/inward/record.url?scp=0036392793&partnerID=8YFLogxK
U2 - 10.1515/MGMC.2002.25.5.315
DO - 10.1515/MGMC.2002.25.5.315
M3 - Review article
AN - SCOPUS:0036392793
SN - 0792-1241
VL - 25
SP - 315
EP - 316
JO - Main Group Metal Chemistry
JF - Main Group Metal Chemistry
IS - 5
ER -