2,2,2-Trichloro-N-(3-nitro-phen-yl)acetamide.

In the title compound, C(8)H(5)Cl(3)N(2)O(3), the dihedral angle between the nitro-phenyl ring and the acetamide group is 5.47 (6)°. In the crystal, N-H⋯O and C-H⋯O hydrogen bonds link the mol-ecules into chains running parallel to the b axis.

(2E)-1-(5-Chloro-thio-phen-2-yl)-3-(2,3-dimeth-oxy-phen-yl)prop-2-en-1-one.

In the title compound, C(15)H(13)ClO(3)S, the chloro-thio-phene and dimeth-oxy-phenyl groups are linked by a prop-2-en-1-one group. The C=C double bond exhibits an E conformation. The mol-ecule is non-planar, with a dihedral angle of 31.12 (5)° between the chloro-thio-phene and dimeth-oxy-phenyl rings. The meth-oxy group at position 3 is coplanar with the benzene ring to which it is attached, with a C-O-C-C torsion angle of -3.8 (3)°. The meth-oxy group attached at position 2 of the benzene ring is in a (+)synclinal conformation, as indicated by the C-O-C-C torsion angle of -73.6 (2)°. In the crystal, two different C-H⋯O inter-molecular inter-actions generate chains of mol-ecules extending along the b axis.

(2E)-1-(5-Chloro-thio-phen-2-yl)-3-(2,4,5-trimeth-oxy-phen-yl)prop-2-en-1-one.

In the title mol-ecule, C(16)H(15)ClO(4)S, the chloro-thio-phene and trimeth-oxy-phenyl rings make a dihedral angle of 31.12 (5)°. The C=C double bond exhibits an E conformation. In the crystal, C-H⋯O inter-actions generate bifurcated bonds, linking the mol-ecules into chains along the b axis.

Minor physical anomalies and obstetrical complications: their relationship to hyperactive, psychoneurotic, and normal children and their families.

Hyperactive, psychoneurotic, and normal control boys and their families were examined for minor physical anomalies (MPA). The results revealed that the hyperactive boys and their families had more MPA than the combined group of psychoneurotic and normal control children and their families. There were no differences in the mean number of MPA within families. Hyperactive probands also had more pre- and perinatal complications than the combined proband group. Furthermore, it was quite evident that the combination of numerous obstetrical complications and a high number of MPA significantly increased the probability of a child being diagnosed as hyperactive. The results are discussed in relation to the genetic transmission of MPA and the use of MPA as high risk indicators.