3-(Adamantan-1-yl)-1-[(4-benzyl­piperazin-1-yl)meth­yl]-4-phenyl-1H-1,2,4-triazole-5(4H)-thione

The title mol­ecule, C₃₀H₃₇N₅S, displays a chair-shaped piperazine ring, as well as an approximately planar triazole ring [maximum deviation = 0.002 (2) Å] whose phenyl substituent is nearly perpendicular to the mean plane of the five-membered ring [dihedral angle = 80.4 (1)°]. The substit­uents on the piperazine ring occupy equatorial sites. Weak inter­molecular C—H...S hydrogen bonding is present in the crystal structure.

3-(Adamantan-1-yl)-4-phenyl-1-[(4-phenyl­piperazin-1-yl)meth­yl]-1H-1,2,4-triazole-5(4H)-thione

The title mol­ecule, C₂₉H₃₅N₅S, displays a chair-shaped piperazine ring, as well as an approximately planar triazole ring (r.m.s. deviation = 0.001 Å) whose phenyl substituent is nearly perpendicular to the mean plane of the five-membered ring [dihedral angle = 88.9 (1)°]. The substituents on the piperazine ring occupy equatorial sites. In the crystal, the adamantyl cage is disordered over two sets of sites with a major component of 67.8 (5)%. Weak inter­molecular C—H...S hydrogen bonding is present in the crystal.

Ethyl 4-{[3-(adamantan-1-yl)-4-phenyl-5-sulfanyl­idene-4,5-dihydro-1H-1,2,4-triazol-1-yl]meth­yl}piperazine-1-carboxyl­ate

The title mol­ecule, C₂₆H₃₅N₅O₂S, displays a chair-shaped piperazine ring, as well as a planar triazole ring whose phenyl substituent is perpendicular to the mean plane of the five-membered ring [dihedral angle = 90.00 (13)°]. The methyl­ene substituent on the piperazine ring occupies an equatorial site. Weak inter­molecular C—H...O hydrogen bonding is present in the crystal structure. The crystal studied was a non-merohedral twin, with a 33.9 (3)% minor component.

3-(Adamantan-1-yl)-4-[(E)-(2,6-difluoro­benzyl­idene)amino]-1-[(4-phenyl­piperazin-1-yl)meth­yl]-1H-1,2,4-triazole-5(4H)-thione

The imine residue [C=N = 1.268 (3) Å; conformation = E] is twisted [N—N—C—N = 87.8 (2)°] out of the plane (r.m.s. deviation = 0.016 Å) of the central 1,2,4-triazole ring in the title compound, C₃₀H₃₄F₂N₆S. A small twist also occurs between the imine and terminal benzene rings [N—C—C—C = −169.8 (2)°]. The piperazine ring (chair conformation) occupies a position almost normal to the central plane [N—N—C—N = 87.8 (2)°]. In the crystal, the mol­ecules are consolidated into a three-dimensional architecture via C—H...S, C—H...π and π–π inter­actions, the latter between centrosymmetrically related difluoro­benzene rings [inter-centroid distance = 3.9389 (18) Å].

5-(Adamantan-1-yl)-3-[(2-meth­oxy­eth­yl)sulfan­yl]-4-phenyl-4H-1,2,4-triazole

In the title adamantyl derivative, C₂₁H₂₇N₃OS, the terminal meth­oxy­ethyl unit is disordered over two orientations with a refined site-occupancy ratio of 0.846 (6):0.154 (6). The 1,2,4-triazole ring is statistically planar [r.m.s. deviation = 0.002 (2) Å] and the phenyl substituent is almost perpendicular to its mean plane [dihedral angle = 83.57 (11)°]. No directional inter­molecular inter­actions were observed in the crystal structure.

3-(Adamantan-1-yl)-4-ethyl-1-[(4-phenyl­piperazin-1-yl)meth­yl]-1H-1,2,4-triazole-5(4H)-thione

The title compound, C₂₅H₃₅N₅S, has an approximately C-shaped conformation. The dihedral angle between the triazole and phenyl planes is 79.5 (2)°. The crystal structure consists of infinite chains parallel to the b axis, constructed by C—H...S hydrogen bonds between translation-related mol­ecules. Adjacent chains are linked via weak C—H...C inter­actions between the adamantyl and phenyl groups.

5-(Adamantan-1-yl)-3-(benzyl­sulfan­yl)-4-methyl-4H-1,2,4-triazole

In the asymmetric unit of the title adamantyl derivative, C₂₀H₂₅N₃S, there are two crystallographic independent mol­ecules with slightly different conformations. In one mol­ecule, the whole benzyl group is disordered over two orientations with the refined site-occupancy ratio of 0.63 (2):0.37 (2). The dihedral angles between the 1,2,4-triazole and phenyl rings are 24.3 (8) (major component) and 25.8 (13)° (minor component) in the disordered mol­ecule, whereas the corresponding angle is 51.53 (16)° in the other mol­ecule. In the crystal, mol­ecules are linked into a chain along the a axis by a weak C—H...N inter­action. Weak C—H...π inter­actions are also observed.