Empirical formula

C6H10.5Ag2.5CrO17

Formula weight

676.30

T (K)

293(2)

Wavelength (Å)

0.71073

Crystal system

monoclinic

Space group

C2/c

Unit cell parameters

a (Å)

18.230(3)

b (Å)

14.652(3)

c (Å)

12.276(3)

α (°)

90

β (°)

113.700(2)

γ (°)

90

V (Å3)

3002.4(11)

Z

8

Dcalc (g/cm3)

2.981

μ (mm−1)

4.03

F(000)

2572

Crystal size (mm)

0.38 × 0.32 × 0.20

θ range for data collection (°)

2.2 - 25.0

Index ranges

−19 ≤ h ≤ 21,

−17 ≤ k ≤ 16,

−14 ≤ l ≤ 14

Total reflections

7233

Unique reflections (Rint)

2630 (0.0236)

Absorption correction

Multi-scan

Refinement method

Full-matrix least squares on F2

Data/restraints/parameters

2630/0/240

Goodness-of-fit (GOF) on F2

1.07

R factor[I > 2 σ(I)]

R1 = 0.0784, wR2 = 0.2312

R factor (all data)

R1 = 0.0814, wR2 = 0.2282

Largest diff. peak and hole (eÅ−3)

2.42 and −3.60