Evaluating the relationship between adult attention-deficit/hyperactivity disorder and riding behavior of motorcyclists.

Background: Motorcycling is one of the main causes of injury, and motorcyclists are vulnerable to road traffic injuries. Attention Deficit Hyperactivity Disorder (ADHD) in adults is presumably one of the determinants of road traffic injuries and motorcyclists' risky behavior. Despite the few studies on the relationship between motorcycle injuries and adult ADHD, their association has not been investigated using standardized instruments.

3-(3-Chloro-2-hy-droxy-phen-yl)-1-phenyl-1H-pyrazole-4-carbaldehyde.

In the title compound, C(16)H(11)ClN(2)O(2), the pyrazole ring makes dihedral angles of 11.88 (13) and 22.33 (13)° with the 3-chloro-2-hy-droxy-benzene group and phenyl rings, respectively.

8-Chloro-6-iodo-2-phenyl-chromeno[4,3-c]pyrazol-4(2H)-one N,N-dimethyl-formamide monosolvate.

In the title compound, C(16)H(8)ClIN(2)O(2)·C(3)H(7)NO, the fused tricyclic pyrazolo-coumarin ring and the N-phenyl ring are almost coplanar, the dihedral angle between them being 1.86 (9)°. In the crystal, these rings stack on top of each other via π-π inter-actions [centroid-centroid distances = 3.