metal-organic compounds
Poly[tris(μ-2-aminobenzene-1,4-dicarboxylato)tetrakis(N,N-dimethylformamide)diyttrium(III)]
ainGAP Centre for Research Based Innovation, Department of Chemistry, University of Oslo, PO Box 1033 Blindern, 0315 Oslo, Norway
*Correspondence e-mail: david.wragg@smn.uio.no
The 2(C8H5NO4)3(C3H7NO)4]n, contains one Y3+ ion, three half-molecules of the 2-aminobenzene-1,4-dicarboxylate (abz) dianion and two O-bonded N,N-dimethylformamide (DMF) molecules. Each abz half-molecule is completed by crystallographic inversion symmetry and its –NH2 group is disordered in each case [relative occupancies within the = 0.462 (18):0.538 (18), 0.93 (2):0.07 (2) and 0.828 (16):0.172 (16)]. The combination of disorder and crystal symmetry means that each of the four C—H atoms of the benzene ring of each of the dianions bears a statistical fraction of an –NH2 group. The coordination geometry of the yttrium ion is a fairly regular YO8 square antiprism arising from its coordination by two DMF molecules, four monodentate abz dianions and one O,O-bidentate abz dianion. The polymeric building unit is a dimeric paddle-wheel with two metal ions linked by four bridging abz dianions. Further bridging linkages connect the dimers into a three-dimensional framework containing voids in which highly disordered DMF molecules are presumed to reside.
of the title coordination polymer, [YRelated literature
For a related structure containing a similar paddle-wheel motif, see: Braun et al. (2001).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2001); cell SAINT (Bruker, 2001); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Crystal Impact, 2004); software used to prepare material for publication: PLATON (Spek, 2009).
Supporting information
https://doi.org/10.1107/S1600536810050555/hb5707sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810050555/hb5707Isup2.hkl
The Title complex Y-BDC-NH2 was prepared by dissolving Y(NO3)3.6H2O (0.383 g, 1 mmol) and 2-amino 1,4-benzenedicarboxylic acid (H2N—H2BDC) (0.181 g, 1 mmol) in N,N`-dimethylformamide (DMF) (20 ml) at room temperature in a test tube. The mixture thus obtained was placed in a pre-heated oven at 80°C for 24 hrs. Colourless plates of (I) were selected directly from the mother liquor as prepared and mounted on cryoloops.
Most of the non hydrogen atoms positions were obtained from the
solution and the remainder (mainly carbon atoms) were located using difference Fourier maps during Hydrogen atoms were placed in ideal positions and refined with a riding model.The title compound (I) is a metal-organic framework (MOF) which is a weak scatterer of X-rays and data were collected from a very small crystal. These were sufficient for
of the framework structure but not the disordered solvent. The (Fig. 1) of the title compound consists of an yttrium atom coordinated by 8 oxygen atoms, 6 from 2-amino-1,4-benzenedicarboxylic acid (BDC-NH2) moieties and 2 from coordinated dimethylformamide solvent. The inorganic cornerstone of the MOF is a paddle wheel type unit comprising two yttrium atoms linked by four bridging Y-BDC-NH2 molecules (Fig. 2). Such units are well known in transition metal MOF structures (Braun, 2001). The paddle wheel carboxylates clearly show one long and one short C—O bond indicating single and double bond character. The single bonded, charge carrying oxygen of the carboxylate group has a shorter Y—O bond distance as would be expected. The axles of the paddle wheel are connected to one BDC-NH2 and 2 DMF molecules at each end.The BDC-NH2 linkers at the ends of the paddle wheel are offset in a trans-type conformation and link the units in chains which, when the structure is viewed along the a-axis (Fig. 3), bisect the angle of the b and c axes. When we view the structure along the axis of the paddle wheel unit (Fig. 4) we see that the bridging BDC-NH2 molecules also link to further units in chains parallel to the a and b-axes producing a three-dinemsional network. The amino groups are disordered over all four possible positions of the benzene rings of the BDC-NH2 linker molecules, except in the case of the ring described by C10, C11 and C12, in which the NH2 was found to be localized on C12. All of the disordered C—N bonds were restrained to have the same bond distance.
1 molecule of DMF solvent per ASU was located in the void space of the MOF using difference Fourier maps but the resulting model gave a poor
The program Squeeze from the PLATON suite (Spek, 2009 ) was used to remove residual electron density from the solvent accessible voids giving a chemically sensible structure and acceptable refinemnt statistics. The squeeze calculation suggests voids containing 90 electrons or 2.25 DMF molecules in each This is in reasonable agreement with the disordered solvent observed in the difference Fourier map.For a related structure containing a similar paddle-wheel motif, see: Braun et al. (2001).
Data collection: SMART (Bruker, 2001); cell
SAINT (Bruker, 2001); data reduction: SAINT (Bruker, 2001); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: DIAMOND (Crystal Impact, 2004); software used to prepare material for publication: PLATON (Spek, 2009).[Y2(C8H5NO4)3(C3H7NO)4] | Z = 1 |
Mr = 1007.59 | F(000) = 505 |
Triclinic, P1 | Dx = 1.257 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 10.525 (3) Å | Cell parameters from 3097 reflections |
b = 11.034 (3) Å | θ = 2.4–28.2° |
c = 12.855 (3) Å | µ = 2.25 mm−1 |
α = 99.359 (3)° | T = 150 K |
β = 111.301 (3)° | Plate, colourless |
γ = 101.265 (2)° | 0.25 × 0.22 × 0.05 mm |
V = 1318.8 (6) Å3 |
Bruker APEX CCD diffractometer | 2345 independent reflections |
Radiation source: sealed tube | 2111 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.027 |
phi and ω scans | θmax = 19.7°, θmin = 1.8° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2004) | h = −9→9 |
Tmin = 0.575, Tmax = 0.894 | k = −10→10 |
7363 measured reflections | l = −12→12 |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.043 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.123 | H-atom parameters constrained |
S = 1.11 | w = 1/[σ2(Fo2) + (0.0707P)2 + 2.6497P] where P = (Fo2 + 2Fc2)/3 |
2345 reflections | (Δ/σ)max = 0.002 |
298 parameters | Δρmax = 0.71 e Å−3 |
46 restraints | Δρmin = −0.41 e Å−3 |
[Y2(C8H5NO4)3(C3H7NO)4] | γ = 101.265 (2)° |
Mr = 1007.59 | V = 1318.8 (6) Å3 |
Triclinic, P1 | Z = 1 |
a = 10.525 (3) Å | Mo Kα radiation |
b = 11.034 (3) Å | µ = 2.25 mm−1 |
c = 12.855 (3) Å | T = 150 K |
α = 99.359 (3)° | 0.25 × 0.22 × 0.05 mm |
β = 111.301 (3)° |
Bruker APEX CCD diffractometer | 2345 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2004) | 2111 reflections with I > 2σ(I) |
Tmin = 0.575, Tmax = 0.894 | Rint = 0.027 |
7363 measured reflections | θmax = 19.7° |
R[F2 > 2σ(F2)] = 0.043 | 46 restraints |
wR(F2) = 0.123 | H-atom parameters constrained |
S = 1.11 | Δρmax = 0.71 e Å−3 |
2345 reflections | Δρmin = −0.41 e Å−3 |
298 parameters |
Geometry. All s.u.'s (except the s.u. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell s.u.'s is used for estimating s.u.'s involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > 2σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
Y1 | 0.60986 (6) | 0.54621 (5) | 0.67714 (5) | 0.0325 (3) | |
O1 | 0.5003 (5) | 0.3303 (4) | 0.5952 (4) | 0.0458 (12) | |
O2 | 0.7957 (6) | 0.4535 (6) | 0.7557 (5) | 0.0777 (17) | |
O3 | 0.6664 (4) | 0.5086 (4) | 0.5242 (4) | 0.0489 (12) | |
O4 | 0.8360 (5) | 0.7070 (5) | 0.7643 (5) | 0.0628 (15) | |
O5 | 0.5711 (5) | 0.7170 (4) | 0.5974 (4) | 0.0429 (11) | |
O6 | 0.6807 (5) | 0.7297 (4) | 0.8365 (4) | 0.0512 (13) | |
O7 | 0.3832 (5) | 0.5508 (4) | 0.6623 (5) | 0.0497 (12) | |
O8 | 0.5809 (6) | 0.4663 (5) | 0.8289 (5) | 0.0664 (16) | |
C1 | 0.5309 (7) | 0.7437 (6) | 0.5023 (7) | 0.0425 (18) | |
C2 | 0.5175 (7) | 0.8788 (6) | 0.5026 (6) | 0.0450 (18) | |
C3 | 0.5023 (8) | 0.9231 (7) | 0.4060 (6) | 0.054 (2) | |
H3 | 0.5042 | 0.8702 | 0.3407 | 0.064* | 0.70 |
C4 | 0.5155 (8) | 0.9569 (6) | 0.5979 (6) | 0.0504 (19) | |
H4 | 0.5264 | 0.9278 | 0.6654 | 0.060* | 0.80 |
C5 | 0.8016 (8) | 0.7688 (7) | 0.8353 (6) | 0.0481 (19) | |
C6 | 0.9007 (8) | 0.8887 (6) | 0.9175 (6) | 0.0507 (19) | |
C7 | 1.0407 (9) | 0.9239 (8) | 0.9287 (7) | 0.075 (3) | |
H7 | 1.0708 | 0.8716 | 0.8812 | 0.090* | 0.75 |
C8 | 0.8620 (8) | 0.9631 (8) | 0.9897 (7) | 0.071 (2) | |
H8 | 0.7680 | 0.9386 | 0.9851 | 0.085* | 0.75 |
C9 | 0.7040 (8) | 0.4813 (6) | 0.4410 (8) | 0.0452 (18) | |
C10 | 0.8564 (7) | 0.4903 (6) | 0.4706 (6) | 0.0426 (18) | |
C11 | 0.9565 (8) | 0.5420 (7) | 0.5837 (6) | 0.052 (2) | |
H11 | 0.9267 | 0.5707 | 0.6424 | 0.062* | |
C12 | 0.9036 (7) | 0.4478 (7) | 0.3883 (6) | 0.052 (2) | |
H12 | 0.8372 | 0.4107 | 0.3106 | 0.062* | 0.50 |
C13 | 0.8097 (13) | 0.3559 (13) | 0.7616 (12) | 0.146 (6) | |
H13 | 0.7299 | 0.2897 | 0.7062 | 0.175* | |
C14 | 0.8993 (18) | 0.1782 (16) | 0.8060 (19) | 0.234 (10) | |
H14A | 0.9844 | 0.1670 | 0.8638 | 0.351* | 0.50 |
H14B | 0.8939 | 0.1452 | 0.7286 | 0.351* | 0.50 |
H14C | 0.8149 | 0.1314 | 0.8132 | 0.351* | 0.50 |
H14D | 0.8111 | 0.1288 | 0.7399 | 0.351* | 0.50 |
H14E | 0.9016 | 0.1505 | 0.8752 | 0.351* | 0.50 |
H14F | 0.9806 | 0.1643 | 0.7905 | 0.351* | 0.50 |
C15 | 1.042 (3) | 0.393 (2) | 0.903 (2) | 0.39 (2) | |
H15A | 1.1003 | 0.3414 | 0.9425 | 0.590* | 0.50 |
H15B | 1.0311 | 0.4561 | 0.9592 | 0.590* | 0.50 |
H15C | 1.0882 | 0.4364 | 0.8598 | 0.590* | 0.50 |
H15D | 1.0461 | 0.4812 | 0.8985 | 0.590* | 0.50 |
H15E | 1.1153 | 0.3666 | 0.8818 | 0.590* | 0.50 |
H15F | 1.0582 | 0.3862 | 0.9812 | 0.590* | 0.50 |
C16 | 0.4818 (15) | 0.3945 (12) | 0.8288 (9) | 0.103 (3) | |
H16 | 0.3967 | 0.3770 | 0.7615 | 0.124* | |
C17 | 0.595 (2) | 0.3593 (16) | 1.0148 (12) | 0.195 (8) | |
H17A | 0.5719 | 0.3094 | 1.0652 | 0.292* | 0.50 |
H17B | 0.6263 | 0.4506 | 1.0539 | 0.292* | 0.50 |
H17C | 0.6713 | 0.3351 | 0.9974 | 0.292* | 0.50 |
H17D | 0.6744 | 0.4206 | 1.0125 | 0.292* | 0.50 |
H17E | 0.6200 | 0.2794 | 1.0237 | 0.292* | 0.50 |
H17F | 0.5750 | 0.3949 | 1.0802 | 0.292* | 0.50 |
C18 | 0.354 (2) | 0.2376 (18) | 0.9021 (16) | 0.244 (11) | |
H18A | 0.3789 | 0.2133 | 0.9755 | 0.366* | 0.50 |
H18B | 0.3319 | 0.1625 | 0.8395 | 0.366* | 0.50 |
H18C | 0.2707 | 0.2706 | 0.8872 | 0.366* | 0.50 |
H18D | 0.2754 | 0.2176 | 0.8260 | 0.366* | 0.50 |
H18E | 0.3225 | 0.2684 | 0.9620 | 0.366* | 0.50 |
H18F | 0.3836 | 0.1604 | 0.9143 | 0.366* | 0.50 |
N1 | 0.7183 (19) | 0.959 (3) | 0.972 (4) | 0.137 (12) | 0.228 (9) |
H1A | 0.6474 | 0.9049 | 0.9113 | 0.165* | 0.228 (9) |
H1B | 0.7011 | 1.0097 | 1.0227 | 0.165* | 0.228 (9) |
N1A | 1.101 (3) | 0.857 (3) | 0.862 (3) | 0.137 (12) | 0.272 (9) |
H1A1 | 1.0485 | 0.7865 | 0.8076 | 0.165* | 0.272 (9) |
H1A2 | 1.1912 | 0.8867 | 0.8752 | 0.165* | 0.272 (9) |
N2 | 0.8114 (13) | 0.3877 (17) | 0.2719 (10) | 0.111 (7) | 0.50 |
H2A | 0.8456 | 0.3596 | 0.2226 | 0.134* | 0.50 |
H2B | 0.7196 | 0.3783 | 0.2487 | 0.134* | 0.50 |
N3 | 0.5205 (18) | 0.9180 (14) | 0.7009 (11) | 0.079 (6) | 0.424 (9) |
H3A | 0.5124 | 0.9699 | 0.7563 | 0.094* | 0.424 (9) |
H3B | 0.5317 | 0.8424 | 0.7082 | 0.094* | 0.424 (9) |
N3A | 0.499 (10) | 0.857 (7) | 0.299 (4) | 0.079 (6) | 0.076 (9) |
H3A1 | 0.5078 | 0.7784 | 0.2905 | 0.094* | 0.076 (9) |
H3A2 | 0.4890 | 0.8945 | 0.2426 | 0.094* | 0.076 (9) |
N4 | 0.4703 (14) | 0.3341 (10) | 0.9082 (10) | 0.143 (4) | |
N5 | 0.9061 (13) | 0.3113 (12) | 0.8242 (12) | 0.157 (5) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Y1 | 0.0242 (4) | 0.0219 (4) | 0.0408 (5) | 0.0023 (3) | 0.0060 (3) | 0.0025 (3) |
O1 | 0.057 (3) | 0.025 (3) | 0.043 (3) | 0.004 (2) | 0.013 (2) | 0.002 (2) |
O2 | 0.064 (4) | 0.065 (4) | 0.100 (5) | 0.033 (3) | 0.019 (3) | 0.027 (4) |
O3 | 0.036 (3) | 0.035 (3) | 0.073 (4) | 0.003 (2) | 0.029 (3) | −0.002 (2) |
O4 | 0.038 (3) | 0.047 (3) | 0.072 (4) | −0.003 (2) | 0.010 (3) | −0.020 (3) |
O5 | 0.049 (3) | 0.026 (3) | 0.040 (3) | 0.004 (2) | 0.007 (2) | 0.005 (2) |
O6 | 0.053 (4) | 0.035 (3) | 0.045 (3) | −0.007 (2) | 0.012 (3) | −0.001 (2) |
O7 | 0.029 (3) | 0.050 (3) | 0.058 (4) | 0.006 (2) | 0.012 (3) | 0.003 (3) |
O8 | 0.073 (4) | 0.043 (3) | 0.069 (4) | −0.006 (3) | 0.026 (3) | 0.013 (3) |
C1 | 0.036 (4) | 0.023 (4) | 0.054 (6) | −0.003 (3) | 0.011 (4) | 0.005 (4) |
C2 | 0.048 (4) | 0.025 (4) | 0.042 (5) | −0.002 (3) | 0.005 (4) | 0.001 (4) |
C3 | 0.075 (5) | 0.029 (5) | 0.042 (5) | 0.005 (4) | 0.014 (4) | 0.005 (4) |
C4 | 0.074 (5) | 0.026 (4) | 0.037 (5) | 0.005 (4) | 0.010 (4) | 0.011 (4) |
C5 | 0.034 (5) | 0.038 (5) | 0.043 (5) | −0.007 (4) | −0.006 (4) | 0.006 (4) |
C6 | 0.051 (6) | 0.033 (4) | 0.050 (5) | −0.004 (4) | 0.014 (4) | −0.004 (4) |
C7 | 0.059 (6) | 0.061 (6) | 0.078 (6) | −0.003 (5) | 0.022 (5) | −0.014 (5) |
C8 | 0.050 (5) | 0.063 (6) | 0.071 (6) | −0.008 (5) | 0.012 (5) | 0.003 (5) |
C9 | 0.038 (5) | 0.029 (4) | 0.068 (6) | 0.008 (3) | 0.025 (5) | 0.003 (4) |
C10 | 0.028 (4) | 0.038 (4) | 0.055 (5) | 0.003 (3) | 0.018 (5) | −0.001 (4) |
C11 | 0.038 (5) | 0.058 (5) | 0.052 (6) | 0.006 (4) | 0.025 (4) | −0.011 (4) |
C12 | 0.025 (5) | 0.064 (5) | 0.047 (5) | 0.004 (4) | 0.008 (4) | −0.009 (4) |
C13 | 0.087 (9) | 0.096 (10) | 0.190 (14) | 0.024 (8) | −0.015 (9) | 0.038 (10) |
C14 | 0.165 (15) | 0.162 (15) | 0.39 (3) | 0.082 (13) | 0.069 (17) | 0.181 (18) |
C15 | 0.32 (3) | 0.23 (2) | 0.36 (3) | 0.14 (2) | −0.13 (3) | −0.08 (2) |
C16 | 0.146 (11) | 0.102 (9) | 0.067 (7) | 0.034 (8) | 0.045 (7) | 0.029 (7) |
C17 | 0.26 (2) | 0.192 (16) | 0.100 (11) | 0.050 (15) | 0.037 (13) | 0.061 (11) |
C18 | 0.23 (2) | 0.26 (2) | 0.236 (19) | −0.063 (16) | 0.147 (17) | 0.100 (17) |
N1 | 0.062 (15) | 0.114 (19) | 0.18 (3) | −0.036 (13) | 0.061 (16) | −0.079 (18) |
N1A | 0.062 (15) | 0.114 (19) | 0.18 (3) | −0.036 (13) | 0.061 (16) | −0.079 (18) |
N2 | 0.031 (8) | 0.196 (18) | 0.066 (10) | 0.025 (9) | 0.006 (8) | −0.035 (11) |
N3 | 0.116 (14) | 0.044 (9) | 0.069 (11) | 0.041 (9) | 0.020 (10) | 0.019 (8) |
N3A | 0.116 (14) | 0.044 (9) | 0.069 (11) | 0.041 (9) | 0.020 (10) | 0.019 (8) |
N4 | 0.192 (12) | 0.124 (8) | 0.099 (8) | 0.000 (8) | 0.063 (8) | 0.040 (7) |
N5 | 0.121 (9) | 0.149 (11) | 0.199 (12) | 0.089 (8) | 0.016 (8) | 0.096 (10) |
Y1—O3 | 2.252 (5) | C12—N2 | 1.411 (11) |
Y1—O1 | 2.311 (4) | C12—H12 | 0.9500 |
Y1—O5 | 2.322 (5) | C13—N5 | 1.284 (14) |
Y1—O7 | 2.335 (4) | C13—H13 | 0.9500 |
Y1—O8 | 2.358 (6) | C14—N5 | 1.433 (18) |
Y1—O2 | 2.361 (6) | C14—H14A | 0.9800 |
Y1—O6 | 2.409 (4) | C14—H14B | 0.9800 |
Y1—O4 | 2.416 (4) | C14—H14C | 0.9800 |
Y1—C5 | 2.775 (7) | C14—H14D | 0.9800 |
Y1—C9i | 3.021 (7) | C14—H14E | 0.9800 |
O1—C1i | 1.268 (8) | C14—H14F | 0.9800 |
O2—C13 | 1.126 (13) | C15—N5 | 1.42 (2) |
O3—C9 | 1.281 (8) | C15—H15A | 0.9800 |
O4—C5 | 1.251 (9) | C15—H15B | 0.9800 |
O5—C1 | 1.245 (8) | C15—H15C | 0.9800 |
O6—C5 | 1.268 (8) | C15—H15D | 0.9800 |
O7—C9i | 1.252 (8) | C15—H15E | 0.9800 |
O8—C16 | 1.179 (13) | C15—H15F | 0.9800 |
C1—O1i | 1.268 (8) | C16—N4 | 1.335 (13) |
C1—C2 | 1.524 (9) | C16—H16 | 0.9500 |
C2—C3 | 1.375 (9) | C17—N4 | 1.451 (17) |
C2—C4 | 1.388 (9) | C17—H17A | 0.9800 |
C3—C4ii | 1.379 (9) | C17—H17B | 0.9800 |
C3—N3A | 1.432 (13) | C17—H17C | 0.9800 |
C3—H3 | 0.9500 | C17—H17D | 0.9800 |
C4—C3ii | 1.379 (9) | C17—H17E | 0.9800 |
C4—N3 | 1.443 (11) | C17—H17F | 0.9800 |
C4—H4 | 0.9500 | C18—N4 | 1.427 (16) |
C5—C6 | 1.470 (10) | C18—H18A | 0.9800 |
C6—C8 | 1.364 (11) | C18—H18B | 0.9800 |
C6—C7 | 1.395 (11) | C18—H18C | 0.9800 |
C7—C8iii | 1.414 (11) | C18—H18D | 0.9800 |
C7—N1A | 1.436 (12) | C18—H18E | 0.9800 |
C7—H7 | 0.9500 | C18—H18F | 0.9800 |
C8—C7iii | 1.414 (11) | N1—H1A | 0.8800 |
C8—N1 | 1.436 (13) | N1—H1B | 0.8800 |
C8—H8 | 0.9500 | N1A—H1A1 | 0.8800 |
C9—O7i | 1.252 (8) | N1A—H1A2 | 0.8800 |
C9—C10 | 1.487 (10) | N2—H2A | 0.8800 |
C9—Y1i | 3.021 (7) | N2—H2B | 0.8800 |
C10—C12 | 1.377 (9) | N3—H3A | 0.8800 |
C10—C11 | 1.390 (9) | N3—H3B | 0.8800 |
C11—C12iv | 1.359 (9) | N3A—H3A1 | 0.8800 |
C11—H11 | 0.9500 | N3A—H3A2 | 0.8800 |
C12—C11iv | 1.359 (9) | ||
O3—Y1—O1 | 77.48 (15) | H14C—C14—H14D | 56.3 |
O3—Y1—O5 | 76.70 (16) | N5—C14—H14E | 109.5 |
O1—Y1—O5 | 128.81 (15) | H14A—C14—H14E | 56.3 |
O3—Y1—O7 | 123.79 (17) | H14B—C14—H14E | 141.1 |
O1—Y1—O7 | 82.81 (16) | H14C—C14—H14E | 56.3 |
O5—Y1—O7 | 76.18 (16) | H14D—C14—H14E | 109.5 |
O3—Y1—O8 | 145.22 (18) | N5—C14—H14F | 109.5 |
O1—Y1—O8 | 75.52 (17) | H14A—C14—H14F | 56.3 |
O5—Y1—O8 | 137.92 (18) | H14B—C14—H14F | 56.3 |
O7—Y1—O8 | 73.86 (19) | H14C—C14—H14F | 141.1 |
O3—Y1—O2 | 81.36 (19) | H14D—C14—H14F | 109.5 |
O1—Y1—O2 | 77.45 (19) | H14E—C14—H14F | 109.5 |
O5—Y1—O2 | 139.42 (19) | N5—C15—H15A | 109.5 |
O7—Y1—O2 | 143.6 (2) | N5—C15—H15B | 109.5 |
O8—Y1—O2 | 71.7 (2) | H15A—C15—H15B | 109.5 |
O3—Y1—O6 | 133.34 (16) | N5—C15—H15C | 109.5 |
O1—Y1—O6 | 148.63 (17) | H15A—C15—H15C | 109.5 |
O5—Y1—O6 | 73.50 (15) | H15B—C15—H15C | 109.5 |
O7—Y1—O6 | 82.41 (18) | N5—C15—H15D | 109.5 |
O8—Y1—O6 | 73.84 (17) | H15A—C15—H15D | 141.1 |
O2—Y1—O6 | 99.00 (19) | H15B—C15—H15D | 56.3 |
O3—Y1—O4 | 84.05 (18) | H15C—C15—H15D | 56.3 |
O1—Y1—O4 | 144.15 (17) | N5—C15—H15E | 109.5 |
O5—Y1—O4 | 74.57 (17) | H15A—C15—H15E | 56.3 |
O7—Y1—O4 | 132.62 (17) | H15B—C15—H15E | 141.1 |
O8—Y1—O4 | 105.82 (19) | H15C—C15—H15E | 56.3 |
O2—Y1—O4 | 69.5 (2) | H15D—C15—H15E | 109.5 |
O6—Y1—O4 | 53.92 (17) | N5—C15—H15F | 109.5 |
C1i—O1—Y1 | 133.9 (4) | H15A—C15—H15F | 56.3 |
C13—O2—Y1 | 138.5 (8) | H15B—C15—H15F | 56.3 |
C9—O3—Y1 | 175.4 (5) | H15C—C15—H15F | 141.1 |
C5—O4—Y1 | 92.8 (4) | H15D—C15—H15F | 109.5 |
C1—O5—Y1 | 141.0 (4) | H15E—C15—H15F | 109.5 |
C5—O6—Y1 | 92.7 (4) | O8—C16—N4 | 130.2 (12) |
C9i—O7—Y1 | 111.1 (4) | O8—C16—H16 | 114.9 |
C16—O8—Y1 | 129.7 (7) | N4—C16—H16 | 114.9 |
O5—C1—O1i | 126.5 (6) | N4—C17—H17A | 109.5 |
O5—C1—C2 | 117.0 (7) | N4—C17—H17B | 109.5 |
O1i—C1—C2 | 116.5 (7) | H17A—C17—H17B | 109.5 |
C3—C2—C4 | 119.1 (6) | N4—C17—H17C | 109.5 |
C3—C2—C1 | 119.9 (7) | H17A—C17—H17C | 109.5 |
C4—C2—C1 | 120.9 (7) | H17B—C17—H17C | 109.5 |
C2—C3—C4ii | 121.2 (7) | N4—C17—H17D | 109.5 |
C2—C3—N3A | 127 (3) | H17A—C17—H17D | 141.1 |
C4ii—C3—N3A | 111 (3) | H17B—C17—H17D | 56.3 |
C2—C3—H3 | 119.4 | H17C—C17—H17D | 56.3 |
C4ii—C3—H3 | 119.4 | N4—C17—H17E | 109.5 |
C3ii—C4—C2 | 119.7 (6) | H17A—C17—H17E | 56.3 |
C3ii—C4—N3 | 115.9 (9) | H17B—C17—H17E | 141.1 |
C2—C4—N3 | 124.3 (8) | H17C—C17—H17E | 56.3 |
C3ii—C4—H4 | 120.2 | H17D—C17—H17E | 109.5 |
C2—C4—H4 | 120.2 | N4—C17—H17F | 109.5 |
O4—C5—O6 | 120.5 (6) | H17A—C17—H17F | 56.3 |
O4—C5—C6 | 120.2 (8) | H17B—C17—H17F | 56.3 |
O6—C5—C6 | 119.3 (8) | H17C—C17—H17F | 141.1 |
O4—C5—Y1 | 60.4 (3) | H17D—C17—H17F | 109.5 |
O6—C5—Y1 | 60.1 (3) | H17E—C17—H17F | 109.5 |
C6—C5—Y1 | 178.5 (5) | N4—C18—H18A | 109.5 |
C8—C6—C7 | 118.5 (7) | N4—C18—H18B | 109.5 |
C8—C6—C5 | 121.4 (8) | H18A—C18—H18B | 109.5 |
C7—C6—C5 | 120.0 (8) | N4—C18—H18C | 109.5 |
C6—C7—C8iii | 120.4 (8) | H18A—C18—H18C | 109.5 |
C6—C7—N1A | 126.5 (13) | H18B—C18—H18C | 109.5 |
C8iii—C7—N1A | 113.1 (13) | N4—C18—H18D | 109.5 |
C6—C7—H7 | 119.8 | H18A—C18—H18D | 141.1 |
C8iii—C7—H7 | 119.8 | H18B—C18—H18D | 56.3 |
C6—C8—C7iii | 121.1 (8) | H18C—C18—H18D | 56.3 |
C6—C8—N1 | 124.9 (15) | N4—C18—H18E | 109.5 |
C7iii—C8—N1 | 111.8 (15) | H18A—C18—H18E | 56.3 |
C6—C8—H8 | 119.4 | H18B—C18—H18E | 141.1 |
C7iii—C8—H8 | 119.4 | H18C—C18—H18E | 56.3 |
O7i—C9—O3 | 121.8 (6) | H18D—C18—H18E | 109.5 |
O7i—C9—C10 | 120.3 (7) | N4—C18—H18F | 109.5 |
O3—C9—C10 | 117.9 (7) | H18A—C18—H18F | 56.3 |
O7i—C9—Y1i | 46.1 (3) | H18B—C18—H18F | 56.3 |
O3—C9—Y1i | 75.7 (4) | H18C—C18—H18F | 141.1 |
C10—C9—Y1i | 166.3 (6) | H18D—C18—H18F | 109.5 |
C12—C10—C11 | 117.7 (6) | H18E—C18—H18F | 109.5 |
C12—C10—C9 | 121.8 (7) | C8—N1—H1A | 120.0 |
C11—C10—C9 | 120.5 (7) | C8—N1—H1B | 120.0 |
C12iv—C11—C10 | 121.1 (6) | H1A—N1—H1B | 120.0 |
C12iv—C11—H11 | 119.5 | C7—N1A—H1A1 | 120.0 |
C10—C11—H11 | 119.5 | C7—N1A—H1A2 | 120.0 |
C11iv—C12—C10 | 121.2 (6) | H1A1—N1A—H1A2 | 120.0 |
C11iv—C12—N2 | 115.9 (8) | C12—N2—H2A | 120.0 |
C10—C12—N2 | 122.9 (8) | C12—N2—H2B | 120.0 |
C11iv—C12—H12 | 119.4 | H2A—N2—H2B | 120.0 |
C10—C12—H12 | 119.4 | C4—N3—H3A | 120.0 |
O2—C13—N5 | 136.2 (13) | C4—N3—H3B | 120.0 |
O2—C13—H13 | 111.9 | H3A—N3—H3B | 120.0 |
N5—C13—H13 | 111.9 | C3—N3A—H3A1 | 120.0 |
N5—C14—H14A | 109.5 | C3—N3A—H3A2 | 120.0 |
N5—C14—H14B | 109.5 | H3A1—N3A—H3A2 | 120.0 |
H14A—C14—H14B | 109.5 | C16—N4—C18 | 129.6 (14) |
N5—C14—H14C | 109.5 | C16—N4—C17 | 118.0 (12) |
H14A—C14—H14C | 109.5 | C18—N4—C17 | 112.3 (12) |
H14B—C14—H14C | 109.5 | C13—N5—C15 | 121.5 (15) |
N5—C14—H14D | 109.5 | C13—N5—C14 | 123.9 (14) |
H14A—C14—H14D | 141.1 | C15—N5—C14 | 113.4 (13) |
H14B—C14—H14D | 56.3 | ||
O3—Y1—O1—C1i | −15.5 (6) | Y1—O5—C1—O1i | −3.7 (11) |
O5—Y1—O1—C1i | 45.7 (6) | Y1—O5—C1—C2 | 176.1 (4) |
O7—Y1—O1—C1i | 111.5 (6) | O5—C1—C2—C3 | 166.7 (6) |
O8—Y1—O1—C1i | −173.4 (6) | O1i—C1—C2—C3 | −13.4 (9) |
O2—Y1—O1—C1i | −99.3 (6) | O5—C1—C2—C4 | −15.5 (9) |
O6—Y1—O1—C1i | 173.9 (5) | O1i—C1—C2—C4 | 164.4 (6) |
O4—Y1—O1—C1i | −76.3 (6) | C4—C2—C3—C4ii | −0.4 (12) |
C5—Y1—O1—C1i | −125.7 (8) | C1—C2—C3—C4ii | 177.5 (6) |
C9i—Y1—O1—C1i | 90.3 (6) | C4—C2—C3—N3A | −179 (5) |
O3—Y1—O2—C13 | −90.5 (14) | C1—C2—C3—N3A | −1 (5) |
O1—Y1—O2—C13 | −11.4 (14) | C3—C2—C4—C3ii | 0.3 (12) |
O5—Y1—O2—C13 | −148.1 (14) | C1—C2—C4—C3ii | −177.5 (6) |
O7—Y1—O2—C13 | 47.4 (15) | C3—C2—C4—N3 | 175.5 (10) |
O8—Y1—O2—C13 | 67.2 (14) | C1—C2—C4—N3 | −2.3 (13) |
O6—Y1—O2—C13 | 136.8 (14) | Y1—O4—C5—O6 | 0.9 (7) |
O4—Y1—O2—C13 | −177.3 (15) | Y1—O4—C5—C6 | −178.3 (6) |
C5—Y1—O2—C13 | 159.4 (14) | Y1—O6—C5—O4 | −0.9 (7) |
C9i—Y1—O2—C13 | 6.9 (16) | Y1—O6—C5—C6 | 178.3 (6) |
O3—Y1—O4—C5 | 157.9 (4) | O3—Y1—C5—O4 | −23.3 (5) |
O1—Y1—O4—C5 | −143.2 (4) | O1—Y1—C5—O4 | 81.3 (8) |
O5—Y1—O4—C5 | 80.1 (4) | O5—Y1—C5—O4 | −91.7 (4) |
O7—Y1—O4—C5 | 26.3 (5) | O7—Y1—C5—O4 | −160.0 (4) |
O8—Y1—O4—C5 | −56.1 (4) | O8—Y1—C5—O4 | 127.0 (4) |
O2—Y1—O4—C5 | −119.1 (5) | O2—Y1—C5—O4 | 55.4 (4) |
O6—Y1—O4—C5 | −0.5 (4) | O6—Y1—C5—O4 | 179.1 (7) |
C9i—Y1—O4—C5 | 57.5 (6) | C9i—Y1—C5—O4 | −140.8 (4) |
O3—Y1—O5—C1 | 33.5 (7) | O3—Y1—C5—O6 | 157.6 (4) |
O1—Y1—O5—C1 | −28.1 (7) | O1—Y1—C5—O6 | −97.8 (7) |
O7—Y1—O5—C1 | −96.8 (7) | O5—Y1—C5—O6 | 89.2 (4) |
O8—Y1—O5—C1 | −142.4 (6) | O7—Y1—C5—O6 | 20.9 (4) |
O2—Y1—O5—C1 | 92.6 (7) | O8—Y1—C5—O6 | −52.1 (4) |
O6—Y1—O5—C1 | 177.2 (7) | O2—Y1—C5—O6 | −123.7 (4) |
O4—Y1—O5—C1 | 120.9 (7) | O4—Y1—C5—O6 | −179.1 (7) |
C5—Y1—O5—C1 | 148.7 (7) | C9i—Y1—C5—O6 | 40.1 (5) |
C9i—Y1—O5—C1 | −74.1 (7) | C8—C6—C7—C8iii | −2.4 (14) |
O3—Y1—O6—C5 | −29.7 (5) | C5—C6—C7—C8iii | −177.8 (7) |
O1—Y1—O6—C5 | 137.5 (4) | C8—C6—C7—N1A | 179 (2) |
O5—Y1—O6—C5 | −82.2 (4) | C5—C6—C7—N1A | 4 (3) |
O7—Y1—O6—C5 | −159.9 (4) | C7—C6—C8—C7iii | 2.4 (14) |
O8—Y1—O6—C5 | 124.7 (4) | C5—C6—C8—C7iii | 177.8 (7) |
O2—Y1—O6—C5 | 56.9 (4) | C7—C6—C8—N1 | 164 (2) |
O4—Y1—O6—C5 | 0.5 (4) | C5—C6—C8—N1 | −20 (3) |
C9i—Y1—O6—C5 | −146.5 (4) | O7i—C9—C10—C12 | −8.9 (10) |
O3—Y1—O7—C9i | 5.9 (5) | O3—C9—C10—C12 | 171.8 (6) |
O1—Y1—O7—C9i | −63.8 (4) | Y1i—C9—C10—C12 | −16 (2) |
O5—Y1—O7—C9i | 69.1 (4) | O7i—C9—C10—C11 | 171.4 (6) |
O8—Y1—O7—C9i | −140.8 (5) | O3—C9—C10—C11 | −8.0 (9) |
O2—Y1—O7—C9i | −121.2 (5) | Y1i—C9—C10—C11 | 163.8 (15) |
O6—Y1—O7—C9i | 143.9 (4) | C12—C10—C11—C12iv | 1.1 (12) |
O4—Y1—O7—C9i | 122.4 (4) | C9—C10—C11—C12iv | −179.2 (7) |
C5—Y1—O7—C9i | 134.4 (4) | C11—C10—C12—C11iv | −1.1 (12) |
O3—Y1—O8—C16 | −84.4 (9) | C9—C10—C12—C11iv | 179.2 (7) |
O1—Y1—O8—C16 | −44.2 (8) | C11—C10—C12—N2 | 176.7 (11) |
O5—Y1—O8—C16 | 88.6 (9) | C9—C10—C12—N2 | −3.1 (14) |
O7—Y1—O8—C16 | 42.4 (9) | Y1—O2—C13—N5 | −162.0 (14) |
O2—Y1—O8—C16 | −125.5 (9) | Y1—O8—C16—N4 | 168.8 (9) |
O6—Y1—O8—C16 | 129.0 (9) | O8—C16—N4—C18 | −172.8 (16) |
O4—Y1—O8—C16 | 173.0 (8) | O8—C16—N4—C17 | 2 (2) |
C5—Y1—O8—C16 | 151.0 (9) | O2—C13—N5—C15 | −8 (3) |
C9i—Y1—O8—C16 | 28.2 (9) | O2—C13—N5—C14 | −175.0 (19) |
Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) −x+1, −y+2, −z+1; (iii) −x+2, −y+2, −z+2; (iv) −x+2, −y+1, −z+1. |
Experimental details
Crystal data | |
Chemical formula | [Y2(C8H5NO4)3(C3H7NO)4] |
Mr | 1007.59 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 150 |
a, b, c (Å) | 10.525 (3), 11.034 (3), 12.855 (3) |
α, β, γ (°) | 99.359 (3), 111.301 (3), 101.265 (2) |
V (Å3) | 1318.8 (6) |
Z | 1 |
Radiation type | Mo Kα |
µ (mm−1) | 2.25 |
Crystal size (mm) | 0.25 × 0.22 × 0.05 |
Data collection | |
Diffractometer | Bruker APEX CCD |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2004) |
Tmin, Tmax | 0.575, 0.894 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7363, 2345, 2111 |
Rint | 0.027 |
θmax (°) | 19.7 |
(sin θ/λ)max (Å−1) | 0.474 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.043, 0.123, 1.11 |
No. of reflections | 2345 |
No. of parameters | 298 |
No. of restraints | 46 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.71, −0.41 |
Computer programs: SMART (Bruker, 2001), SAINT (Bruker, 2001), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), DIAMOND (Crystal Impact, 2004), PLATON (Spek, 2009).
Y1—O3 | 2.252 (5) | Y1—O8 | 2.358 (6) |
Y1—O1 | 2.311 (4) | Y1—O2 | 2.361 (6) |
Y1—O5 | 2.322 (5) | Y1—O6 | 2.409 (4) |
Y1—O7 | 2.335 (4) | Y1—O4 | 2.416 (4) |
Acknowledgements
The authors thank the Research Council of Norway and inGAP for funding.
References
Braun, M. E., Steffek, C. D., Kim, J., Rasmussen, P. G. & Yaghi, O. M. (2001). Chem. Commun. pp. 2532–2533. Web of Science CSD CrossRef Google Scholar
Bruker (2001). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Crystal Impact (2004). DIAMOND. Crystal Impact GbR, Bonn, Germany. Google Scholar
Sheldrick, G. M. (2004). SADABS. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Spek, A. L. (2009). Acta Cryst. D65, 148–155. Web of Science CrossRef CAS IUCr Journals Google Scholar
This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
The title compound (I) is a metal-organic framework (MOF) which is a weak scatterer of X-rays and data were collected from a very small crystal. These were sufficient for refinement of the framework structure but not the disordered solvent. The asymmetric unit (Fig. 1) of the title compound consists of an yttrium atom coordinated by 8 oxygen atoms, 6 from 2-amino-1,4-benzenedicarboxylic acid (BDC-NH2) moieties and 2 from coordinated dimethylformamide solvent. The inorganic cornerstone of the MOF is a paddle wheel type unit comprising two yttrium atoms linked by four bridging Y-BDC-NH2 molecules (Fig. 2). Such units are well known in transition metal MOF structures (Braun, 2001). The paddle wheel carboxylates clearly show one long and one short C—O bond indicating single and double bond character. The single bonded, charge carrying oxygen of the carboxylate group has a shorter Y—O bond distance as would be expected. The axles of the paddle wheel are connected to one BDC-NH2 and 2 DMF molecules at each end.
The BDC-NH2 linkers at the ends of the paddle wheel are offset in a trans-type conformation and link the units in chains which, when the structure is viewed along the a-axis (Fig. 3), bisect the angle of the b and c axes. When we view the structure along the axis of the paddle wheel unit (Fig. 4) we see that the bridging BDC-NH2 molecules also link to further units in chains parallel to the a and b-axes producing a three-dinemsional network. The amino groups are disordered over all four possible positions of the benzene rings of the BDC-NH2 linker molecules, except in the case of the ring described by C10, C11 and C12, in which the NH2 was found to be localized on C12. All of the disordered C—N bonds were restrained to have the same bond distance.
1 molecule of DMF solvent per ASU was located in the void space of the MOF using difference Fourier maps but the resulting model gave a poor refinement. The program Squeeze from the PLATON suite (Spek, 2009 ) was used to remove residual electron density from the solvent accessible voids giving a chemically sensible structure and acceptable refinemnt statistics. The squeeze calculation suggests voids containing 90 electrons or 2.25 DMF molecules in each unit cell. This is in reasonable agreement with the disordered solvent observed in the difference Fourier map.