Research Article

Novel Nonsymmetrically p-Benzyl-Substituted (Benz)imidazole N-Heterocyclic Carbene-Silver(I) Acetate Complexes: Synthesis and Biological Evaluation

Table 1

Crystal data and structure refinement for 4b.

4b

Empirical formulaC25 H22 N3 O2 Ag
Formula weight [g/mol]504.33
Crystal systemMonoclinic
Space groupP21/n (#14)
Unit cell dimensions [Å] a7.6287(2)
          b12.4073(3)
          c23.0001(6)
          β94.496(3)°
Volume [Å3]2170.30(10)
Z4
Density [mg/m3] (calc.)1.543
Absorption coefficient [mm−1]0.956
F(000)1024
Crystal size [mm3]0.2663 × 0.1227 × 0.1080
Theta range for data collection3.32 to 26.42°.
Index ranges–9 ≤ h≤ 9
–15 ≤ k ≤ 15
–28 ≤ l ≤ 28
Reflections collected35074
Independent reflections4454 [R(int) = 0.0421]
Completeness to 99.6%
Max. and min. transmission0.913 and 0.808
Data/restraints/parameters4454/0/287
Goodness of fit in F21.086
Final R indices (I > 2σ(I))R1 = 0.0238
wR2 = 0.0512
R indices (all data)R1 = 0.0301
wR2 = 0.0543
Largest diff. peak and hole0.871 and 0.323 e·Å−3