
S4
Elemental Analysis: calcd for C
20
H
18
O
11
(H
4
2·H
2
O) C 55.30 % H 4.18 %, found C 55.49 % H
3.91 %
2.5 [Zn
2
(L1)(H
2
O)
4
]·2H
2
O (1)
Zn(ClO
4
)
2
·6H
2
O (0.112 g, 0.30 mmol) and butane tetraacid H
4
L2 (0.042 g, 0.10 mmol) were
added to a Parr 23 ml pressure vessel with Teflon liner followed by DMF (3 ml), ethanol (3 ml)
and distilled water (2 ml). The flask was sealed and heated at 95 ºC for 48 hours before being
cooled down to room temperature at 0.1 ºC min
-1
. The colourless crystalline product was
collected by filtration and included crystals suitable for single crystal diffraction study. Yield
0.039 g (59.7 %). Elemental analysis: calcd for Zn
2
C
20
H
26
O
16
C 36.78 % H 4.01 %; found C
36.72 % H 3.74 %.
2.6 [Zn
4
(L2)
2
(DMF)
3
(H
2
O)
3
]·4H
2
O (2)
Zn(ClO
4
)
2
·6H
2
O (0.112 g, 0.30 mmol) and butene tetraacid H
4
L1 (0.042 g, 0.10 mmol) were
added to a Parr 23 ml pressure vessel with Teflon liner followed by DMF (3 ml), ethanol (3 ml)
and distilled water (2 ml). The flask was sealed and heated at 95 ºC for 48 hours before being
cooled down to room temperature at 0.1 ºC min
-1
. The colourless crystalline product was
collected by filtration and included crystals suitable for single crystal diffraction study. Yield
0.051 g (35.6 %). Elemental analysis: calcd for Zn
4
C
49
H
59
O
30
N
3
C 41.11 % H 4.15 % N 2.94 %;
found C 40.64 % H 3.95 % N 2.56 %. The powder diffraction pattern of the bulk sample was
consistent with that calculated from the single crystal diffraction data.
3. Crystallography
3.1 Single Crystal Diffraction
Crystals of 1 and 2 were mounted using a viscous hydrocarbon oil to coat the crystal on a thin
carbon fibre attached to the end of a borosilicate glass capillary. X-ray data were collected on
synchrotron beam line 16.2smx at the Synchrotron Radiation Source at the CCLRC Daresbury
Laboratory at 100 K. For each compound, data were corrected for absorption using empirical
methods (SADABS) based upon symmetry equivalent reflections combined with measurements
at different azimuthal angles [1]. Crystal structures were solved and refined against all F
2
values
using the SHELXTL suite of programs [2]. Non-hydrogen atoms were refined anisotropically
(when no disorder was present) and hydrogen atoms associated with oxygen atoms were located
from the difference map and the O–H distance fixed at 0.96 Å. All other hydrogen atoms were
placed in calculated positions with idealised geometries and refined using a riding model. In 2,
three of the four uncoordinated water molecules have the oxygen atom disordered over two sites
and have been modelled with 59(1):41(1), 72(2):28(2) and 58(2):42(2) ratios respectively.
Hydrogen atoms were not modelled on the disordered water molecules. Views of the two-fold
interpenetrated diamondoid network adopted by 2 are shown in Figures S1 and S2.
Table S1. Data collection, Structure Solution and Refinement Parameters for 1 and 2
1 2
Crystal colour Colourless Colourless
Formula Zn
2
C
20
H
26
O
16
Zn
4
C
49
H
59
O
30
N
3
M
r
326.57 1431.67
Crystal size (mm) 0.06 x 0.06 x 0.06 0.20 x 0.13 x 0.03
Crystal system Triclinic Triclinic
Space group, Z P-1, 1 P-1, 2
a (Å) 7.6916(15) 13.0757(6)
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