Table 1 Crystallographic data and structure refinement for compounds 13.

From: Tosylation of alcohols: an effective strategy for the functional group transformation of organic derivatives of polyoxometalates

 

1

2

3

Empirical formula

C61H109.5N4.5O25S2V6

C50H100N12O19V6

C42H88Br2N2O19V6

Size [mm3]

0.1 × 0.2 × 0.3

0.4 × 0.35 × 0.15

0.15 × 0.2 × 0.35

Formula weight

1675.79

1478.55

1390.60

Crystal system

Monoclinic

Monoclinic

Triclinic

Space group

C2/c

C2/c

P-1

a [Å]

29.7672(12)

28.0514(15)

10.8872(2)

b [Å]

16.4119(4)

16.1942(6)

13.0882(4)

c [Å]

16.6684(5)

16.8286

20.4111(6)

α [°]

  

81.547(3)

β [°]

108.645(3)

115.432(4)

83.464(2)

γ [°]

  

85.946(2)

V [Å3]

7715.7(4)

6903.9(5)

2853.86(14)

Z

4

4

2

Dcalc [g.cm−3]

1.443

1.379

1.618

Temperature [K]

173.0(1)

106.1(2)

297.51(18)

Tmax/Tmin

1.000/0.504

1.000/0.899

1.000/0.577

Absorption coeff. [mm−1]

6.992

0.849

10.131

F (000)

3508.0

3008

1428.0

θ range [°]

3.84 to 76.32

2.99 to 29.60

3.42 to 75.95

Reflections collected

27383

13862

20449

GOF on F 2

1.048

1.055

1.052

Final R indices [I > 2σ(I)]

R 1 = 0.0509, wR 2 = 0.1456

R 1 = 0.0632, wR 2 = 0.1625

R1 = 0.0685, wR 2 = 0.2029

R indices (all data)

R 1 = 0.0562, wR 2 = 0.1510

R 1 = 0.0862, wR 2 = 0.1781

R1 = 0.0834, wR 2 = 0.2153

  1. wR 2 = {Σ[w(F o 2 − F c 2)2]/Σ[w(F o 2)2]}1/2; R 1 = Σ| |Fo| − |Fc| |/Σ|Fo. *GooF = S = {Σ [w(F o 2 − F c 2)2]/(n − p)2}1/2.