The title compound, [Co(C(20)H(23)N(3)O(2))(C(5)H(11)N)](C(24)H(20)B) or [Co{(Me-sal)(2)dien}(pprdn)]BPh(4), where (Me-sal)(2)dien is 2,2'-[1,1'-(3-aza-pentane-1,5-diyldinitrilo)diethyl-idyne]diphenolate and pprdn is piperidine, contains a penta-dentate (Me-sal)(2)dien ligand furnishing an N(3)O(2) set, such that two of the N and one of the O atoms of the salicyl-idene rings define three positi...

In the title complex, [Sb(C(6)H(5))(3)(C(6)H(3)ClNO(2))Cl], the Sb center has a close to ideal trigonal-bipyramidal geometry, with the phenyl ligands in equatorial positions and the chloride and a carboxyl-ate O atom in axial positions. Weak C-H⋯O contacts generate dimeric units via crystallographic inversion centres.

In the title compound, [CoCl(C2H7N)(C3H10N2)2]Cl2, the Co(III) ion has a distorted octa-hedral coordination environment and is surrounded by four N atoms in the equatorial plane, with the other N and Cl atoms occupying the axial positions. The crystal packing is stabilized by N-H⋯Cl hydrogen bonds, forming a layered arrangement parallel to (1-10).

In the title polymeric coordination compound, [Sn(CH(3))(3)(C(7)H(3)F(2)O(2))](n), the Sn atom exhibits a distorted trigonal-bipyramidal coordination geometry with the carboxyl-ate O atoms in the axial positions and the equatorial positions occupied by the methyl groups. The two Sn-O bond lengths are 2.225 (5) and 2.410 (6) Å.

In the title compound, C19H23N, the piperidine ring has a chair conformation. The phenyl rings are inclined to one another by 52.76 (16)°. One of the methyl substituents on the piperidine ring is axial while the other is equatorial, like the phenyl rings. In the crystal, mol-ecules are linked via C-H⋯π inter-actions, forming zigzag chains along [001].

In the title compound, [Cu(ClO(4))(2)(C(16)H(16)N(4)O)(2)]·2CH(3)CN, the Cu(II) atom, located on an inversion center, is in a tetra-gonally distorted octa-hedral environment, coordinated by four N atoms of two bidentate 3-ethyl-4-(4-methoxy-phen-yl)-5-(2-pyrid-yl)-4H-1,2,4-triazole ligands in equatorial positions and by the O atoms of two perchlorate groups in axial positions. The long axial Cu...

(1) We studied the influence of photoperiod and unilateral lid suture on post-natal ocular growth in two types of White Leghorn chicks previously reported to respond differently to visual deprivation, Truslow and Cornell K chicks. We analyzed the chicks after 2 weeks of rearing, a time period commonly used in neuropharmacological studies of eye growth but much shorter than in most prior studies...

PURPOSE To compare lens dimensions and refractive index distributions in type 1 diabetes and age-matched control groups. METHODS There were 17 participants with type 1 diabetes, consisting of two subgroups (7 young [23 ± 4 years] and 10 older [54 ± 4 years] participants), with 23 controls (13 young, 24 ± 4 years; 10 older, 55 ± 4 years). For each participant, one eye was tested with relaxed a...