Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S1600536807047332/nc2059sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S1600536807047332/nc2059Isup2.hkl |
CCDC reference: 627192
A mixture of 0.17 g (1.0 mmol) CuCl2.2H2O, 1.0 ml (4.0 mmol) 2-hydroxyphosphonoacetic acid (48.0 wt %) and 0.04 g (1.0 mmol) NH4F (as a mineralizer) were dissolved in 8 ml of deionized water, and then ammonia was added with stirring to adjust the pH of the mixture to pH = 3.0. The mixture was transfered into a 23 ml Teflon-lined stainless steel autoclave, and then heated at 423 K for 72 h. After cooling to toom-temperature blue crystals of the title compound were obtained, which were washed with demineralized water and dried in air at room temperature.
The C—H and hydroxyl H atoms were positioned with idealized geometry and refined isotropic (Uiso(H) = 1.2Ueq(C)) 1.5Ueq(O)) using a riding model with C—H = 0.98 and O—H = 0.82 Å. The water H atoms were located in difference map, refined isotropic with (Uiso(H) = 1.5Ueq(O)) but their bond lengths were restraint to 0.84 Å.
Metal phosphonates have been of increasing interest in the past decade due to their potential applications in the fields of catalysis (Sharma & Clearfield, 2000), ion exchange (Clearfield, 1988), proton conductivity (Alberti et al., 1992), gas and liquid separations (Riou et al., 2000), biology (Nonglaton et al., 2004), and organic molecule sorption (Clearfield, 1998). Great efforts have been made to the syntheses of novel inorganic-organic hybrid materials based on metal phosphonates, which exhibt a variety of structures such as one-dimensional chains, two-dimensional layers, and three-dimensional networks. Recently, we also reported a novel one-dimensional Ni2+ coordination polymer containing 2-hydroxyphosphonoacetic acid (H3L) (Li et al., 2007). In this paper, we report the crystal structure of the copper(II) coordination polymer Cu[(HO3PCH(OH)CO2)(H2O)]n.2n(H2O), (I).
In the crystal structure of the title compound the Cu atom are in a distorted square-pyramidal coordination built up of five oxygen atoms from two symmetry related O3PCH(OH)CO2) anions and one coordinated water molecule. The values of the Cu—O bond lengths and O—Cu—O angles are in the range of 1.965 (3)–2.212 (3) Å and 76.07 (11) -174.87 (11) °, respectively (Table 1). The copper atoms are connected by the anions into chains, which elongate in the direction of the c axis. These chains are further be connected by O—H···O hydrogen bonding into layers, that are parallel to the a/b-plane. These layers are connected by the uncoordinated water molecules via hydrogen bonds into a three-dimensional hydrogen bonded network (Table 2 and Fig. 2).
For related literature, see: Alberti et al. (1992); Clearfield (1988, 1998); Li et al. (2007); Nonglaton et al. (2004); Riou et al. (2000); and Sharma & Clearfield (2000).
Data collection: APEX2 (Bruker, 2005); cell refinement: SAINT (Bruker, 2005); data reduction: SAINT (Bruker, 2005); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997a); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997a); molecular graphics: SHELXTL (Sheldrick, 1997b); software used to prepare material for publication: SHELXTL (Sheldrick, 1997b).
[Cu(C2H3O6P)(H2O)]·2H2O | Dx = 2.247 Mg m−3 |
Mr = 271.60 | Mo Kα radiation, λ = 0.71073 Å |
Orthorhombic, Pbca | Cell parameters from 1082 reflections |
a = 8.610 (5) Å | θ = 3.2–23.6° |
b = 9.871 (6) Å | µ = 2.95 mm−1 |
c = 18.892 (12) Å | T = 273 K |
V = 1605.6 (17) Å3 | Plate, blue |
Z = 8 | 0.10 × 0.04 × 0.03 mm |
F(000) = 1096 |
Bruker APEXII CCD diffractometer | 1659 independent reflections |
Radiation source: fine-focus sealed tube | 1187 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.072 |
ω scans | θmax = 26.5°, θmin = 2.2° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | h = −10→9 |
Tmin = 0.757, Tmax = 0.917 | k = −12→12 |
8695 measured reflections | l = −23→13 |
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)] = 0.035 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.084 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0342P)2 + 1.1295P] where P = (Fo2 + 2Fc2)/3 |
1659 reflections | (Δ/σ)max = 0.048 |
136 parameters | Δρmax = 0.48 e Å−3 |
6 restraints | Δρmin = −0.49 e Å−3 |
[Cu(C2H3O6P)(H2O)]·2H2O | V = 1605.6 (17) Å3 |
Mr = 271.60 | Z = 8 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 8.610 (5) Å | µ = 2.95 mm−1 |
b = 9.871 (6) Å | T = 273 K |
c = 18.892 (12) Å | 0.10 × 0.04 × 0.03 mm |
Bruker APEXII CCD diffractometer | 1659 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | 1187 reflections with I > 2σ(I) |
Tmin = 0.757, Tmax = 0.917 | Rint = 0.072 |
8695 measured reflections |
R[F2 > 2σ(F2)] = 0.035 | 6 restraints |
wR(F2) = 0.084 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.04 | Δρmax = 0.48 e Å−3 |
1659 reflections | Δρmin = −0.49 e Å−3 |
136 parameters |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'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 > σ(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 | ||
Cu1 | 1.12936 (5) | 0.14810 (5) | 0.35146 (3) | 0.01657 (16) | |
P1 | 0.80368 (12) | 0.01391 (10) | 0.35635 (6) | 0.0175 (3) | |
O1 | 0.7397 (3) | −0.1226 (3) | 0.37296 (16) | 0.0240 (7) | |
O2 | 0.9538 (3) | 0.0507 (3) | 0.39423 (15) | 0.0225 (7) | |
O3 | 0.6732 (3) | 0.1198 (3) | 0.37279 (16) | 0.0270 (7) | |
H3A | 0.7100 | 0.1964 | 0.3717 | 0.040* | |
O4 | 0.7112 (3) | −0.0110 (3) | 0.22203 (15) | 0.0211 (7) | |
H4A | 0.7111 | −0.0932 | 0.2156 | 0.032* | |
O5 | 1.0010 (3) | 0.2248 (3) | 0.27486 (15) | 0.0181 (6) | |
O6 | 0.8140 (3) | 0.2309 (3) | 0.19528 (15) | 0.0171 (6) | |
O7 | 1.2579 (4) | 0.0954 (3) | 0.43328 (16) | 0.0241 (7) | |
H7A | 1.312 (5) | 0.024 (3) | 0.430 (3) | 0.036* | |
H7B | 1.317 (4) | 0.162 (3) | 0.442 (3) | 0.036* | |
O1W | 1.0708 (4) | 0.3578 (3) | 0.41515 (18) | 0.0302 (8) | |
H1WA | 0.979 (2) | 0.377 (5) | 0.402 (3) | 0.045* | |
H2WA | 0.416 (6) | 0.356 (4) | 0.5073 (19) | 0.045* | |
O2W | 0.4439 (5) | 0.3037 (3) | 0.47445 (19) | 0.0387 (9) | |
H1WB | 1.057 (7) | 0.326 (5) | 0.4561 (13) | 0.058* | |
H2WB | 0.487 (6) | 0.355 (5) | 0.444 (2) | 0.058* | |
C1 | 0.8444 (4) | 0.0260 (4) | 0.2620 (2) | 0.0162 (9) | |
H1B | 0.9299 | −0.0356 | 0.2503 | 0.019* | |
C2 | 0.8908 (4) | 0.1696 (4) | 0.2423 (2) | 0.0150 (9) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cu1 | 0.0155 (3) | 0.0165 (3) | 0.0177 (3) | −0.0013 (2) | −0.0005 (2) | 0.0011 (2) |
P1 | 0.0165 (6) | 0.0134 (5) | 0.0225 (6) | −0.0016 (4) | 0.0007 (5) | 0.0013 (5) |
O1 | 0.0249 (16) | 0.0154 (17) | 0.0317 (17) | −0.0033 (13) | 0.0011 (13) | 0.0046 (12) |
O2 | 0.0215 (16) | 0.0247 (16) | 0.0214 (16) | −0.0051 (13) | −0.0022 (13) | 0.0032 (13) |
O3 | 0.0235 (17) | 0.0180 (16) | 0.039 (2) | 0.0032 (12) | 0.0077 (14) | 0.0003 (14) |
O4 | 0.0221 (16) | 0.0119 (15) | 0.0293 (17) | −0.0028 (12) | −0.0077 (13) | −0.0019 (13) |
O5 | 0.0145 (14) | 0.0144 (16) | 0.0254 (17) | −0.0040 (11) | −0.0014 (13) | 0.0013 (12) |
O6 | 0.0181 (15) | 0.0129 (15) | 0.0203 (16) | 0.0001 (12) | −0.0020 (13) | 0.0029 (12) |
O7 | 0.0250 (17) | 0.0198 (17) | 0.0275 (17) | 0.0012 (13) | −0.0068 (14) | 0.0010 (15) |
O1W | 0.0243 (17) | 0.0299 (19) | 0.036 (2) | 0.0041 (15) | −0.0012 (16) | 0.0010 (16) |
O2W | 0.051 (2) | 0.034 (2) | 0.031 (2) | −0.0119 (18) | 0.0026 (18) | −0.0001 (15) |
C1 | 0.018 (2) | 0.012 (2) | 0.018 (2) | 0.0018 (16) | −0.0020 (17) | −0.0004 (16) |
C2 | 0.014 (2) | 0.015 (2) | 0.017 (2) | 0.0011 (17) | 0.0023 (17) | 0.0003 (17) |
Cu1—O2 | 1.965 (3) | O4—H4A | 0.8200 |
Cu1—O7 | 1.971 (3) | O5—C2 | 1.255 (4) |
Cu1—O5 | 1.972 (3) | O6—C2 | 1.262 (5) |
Cu1—O6i | 1.994 (3) | O6—Cu1ii | 1.994 (3) |
Cu1—O4i | 2.211 (3) | O7—H7A | 0.847 (10) |
P1—O1 | 1.489 (3) | O7—H7B | 0.848 (10) |
P1—O2 | 1.522 (3) | O1W—H1WA | 0.846 (10) |
P1—O3 | 1.565 (3) | O1W—H1WB | 0.843 (10) |
P1—C1 | 1.820 (4) | O2W—H2WA | 0.845 (10) |
O3—H3A | 0.8200 | O2W—H2WB | 0.845 (10) |
O4—C1 | 1.421 (4) | C1—C2 | 1.519 (5) |
O4—Cu1ii | 2.211 (3) | C1—H1B | 0.9800 |
O2—Cu1—O7 | 88.87 (13) | C1—O4—H4A | 109.5 |
O2—Cu1—O5 | 93.35 (12) | Cu1ii—O4—H4A | 127.6 |
O7—Cu1—O5 | 172.53 (12) | C2—O5—Cu1 | 128.1 (3) |
O2—Cu1—O6i | 174.86 (11) | C2—O6—Cu1ii | 122.2 (2) |
O7—Cu1—O6i | 90.45 (13) | Cu1—O7—H7A | 118 (3) |
O5—Cu1—O6i | 87.97 (12) | Cu1—O7—H7B | 107 (3) |
O2—Cu1—O4i | 98.97 (11) | H7A—O7—H7B | 109 (4) |
O7—Cu1—O4i | 97.25 (12) | H1WA—O1W—H1WB | 102 (5) |
O5—Cu1—O4i | 89.46 (12) | H2WA—O2W—H2WB | 105 (5) |
O6i—Cu1—O4i | 76.07 (11) | O4—C1—C2 | 108.8 (3) |
O1—P1—O2 | 115.56 (17) | O4—C1—P1 | 110.4 (3) |
O1—P1—O3 | 107.27 (17) | C2—C1—P1 | 110.6 (3) |
O2—P1—O3 | 110.90 (17) | O4—C1—H1B | 109.0 |
O1—P1—C1 | 109.69 (17) | C2—C1—H1B | 109.0 |
O2—P1—C1 | 106.32 (17) | P1—C1—H1B | 109.0 |
O3—P1—C1 | 106.78 (17) | O5—C2—O6 | 122.2 (3) |
P1—O2—Cu1 | 125.23 (18) | O5—C2—C1 | 118.9 (3) |
P1—O3—H3A | 109.5 | O6—C2—C1 | 118.9 (3) |
C1—O4—Cu1ii | 114.1 (2) |
Symmetry codes: (i) x+1/2, y, −z+1/2; (ii) x−1/2, y, −z+1/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
O3—H3A···O1iii | 0.82 | 1.84 | 2.651 (4) | 171 |
O4—H4A···O6iv | 0.82 | 1.79 | 2.606 (4) | 172 |
O7—H7A···O1Wv | 0.85 (1) | 1.95 (1) | 2.792 (5) | 176 (5) |
O2W—H2WA···O2vi | 0.85 (1) | 2.10 (3) | 2.868 (5) | 151 (5) |
O1W—H1WA···O1iii | 0.85 (1) | 1.97 (2) | 2.797 (5) | 167 (5) |
O1W—H1WB···O2Wvii | 0.84 (1) | 2.08 (3) | 2.844 (5) | 151 (5) |
O2W—H2WB···O2iii | 0.85 (1) | 2.21 (3) | 3.003 (5) | 156 (5) |
O7—H7B···O2Wviii | 0.85 (1) | 1.88 (1) | 2.720 (5) | 173 (5) |
Symmetry codes: (iii) −x+3/2, y+1/2, z; (iv) −x+3/2, y−1/2, z; (v) −x+5/2, y−1/2, z; (vi) x−1/2, −y+1/2, −z+1; (vii) x+1/2, −y+1/2, −z+1; (viii) x+1, y, z. |
Experimental details
Crystal data | |
Chemical formula | [Cu(C2H3O6P)(H2O)]·2H2O |
Mr | 271.60 |
Crystal system, space group | Orthorhombic, Pbca |
Temperature (K) | 273 |
a, b, c (Å) | 8.610 (5), 9.871 (6), 18.892 (12) |
V (Å3) | 1605.6 (17) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 2.95 |
Crystal size (mm) | 0.10 × 0.04 × 0.03 |
Data collection | |
Diffractometer | Bruker APEXII CCD |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2003) |
Tmin, Tmax | 0.757, 0.917 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8695, 1659, 1187 |
Rint | 0.072 |
(sin θ/λ)max (Å−1) | 0.628 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.035, 0.084, 1.04 |
No. of reflections | 1659 |
No. of parameters | 136 |
No. of restraints | 6 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.48, −0.49 |
Computer programs: APEX2 (Bruker, 2005), SAINT (Bruker, 2005), SHELXS97 (Sheldrick, 1997a), SHELXL97 (Sheldrick, 1997a), SHELXTL (Sheldrick, 1997b).
Cu1—O2 | 1.965 (3) | Cu1—O6i | 1.994 (3) |
Cu1—O7 | 1.971 (3) | Cu1—O4i | 2.211 (3) |
Cu1—O5 | 1.972 (3) | ||
O2—Cu1—O7 | 88.87 (13) | O5—Cu1—O6i | 87.97 (12) |
O2—Cu1—O5 | 93.35 (12) | O2—Cu1—O4i | 98.97 (11) |
O7—Cu1—O5 | 172.53 (12) | O7—Cu1—O4i | 97.25 (12) |
O2—Cu1—O6i | 174.86 (11) | O5—Cu1—O4i | 89.46 (12) |
O7—Cu1—O6i | 90.45 (13) | O6i—Cu1—O4i | 76.07 (11) |
Symmetry code: (i) x+1/2, y, −z+1/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
O3—H3A···O1ii | 0.82 | 1.84 | 2.651 (4) | 170.6 |
O4—H4A···O6iii | 0.82 | 1.79 | 2.606 (4) | 172.0 |
O7—H7A···O1Wiv | 0.847 (10) | 1.947 (12) | 2.792 (5) | 176 (5) |
O2W—H2WA···O2v | 0.845 (10) | 2.10 (3) | 2.868 (5) | 151 (5) |
O1W—H1WA···O1ii | 0.846 (10) | 1.965 (15) | 2.797 (5) | 167 (5) |
O1W—H1WB···O2Wvi | 0.843 (10) | 2.08 (3) | 2.844 (5) | 151 (5) |
O2W—H2WB···O2ii | 0.845 (10) | 2.21 (3) | 3.003 (5) | 156 (5) |
O7—H7B···O2Wvii | 0.848 (10) | 1.876 (13) | 2.720 (5) | 173 (5) |
Symmetry codes: (ii) −x+3/2, y+1/2, z; (iii) −x+3/2, y−1/2, z; (iv) −x+5/2, y−1/2, z; (v) x−1/2, −y+1/2, −z+1; (vi) x+1/2, −y+1/2, −z+1; (vii) x+1, y, z. |
Metal phosphonates have been of increasing interest in the past decade due to their potential applications in the fields of catalysis (Sharma & Clearfield, 2000), ion exchange (Clearfield, 1988), proton conductivity (Alberti et al., 1992), gas and liquid separations (Riou et al., 2000), biology (Nonglaton et al., 2004), and organic molecule sorption (Clearfield, 1998). Great efforts have been made to the syntheses of novel inorganic-organic hybrid materials based on metal phosphonates, which exhibt a variety of structures such as one-dimensional chains, two-dimensional layers, and three-dimensional networks. Recently, we also reported a novel one-dimensional Ni2+ coordination polymer containing 2-hydroxyphosphonoacetic acid (H3L) (Li et al., 2007). In this paper, we report the crystal structure of the copper(II) coordination polymer Cu[(HO3PCH(OH)CO2)(H2O)]n.2n(H2O), (I).
In the crystal structure of the title compound the Cu atom are in a distorted square-pyramidal coordination built up of five oxygen atoms from two symmetry related O3PCH(OH)CO2) anions and one coordinated water molecule. The values of the Cu—O bond lengths and O—Cu—O angles are in the range of 1.965 (3)–2.212 (3) Å and 76.07 (11) -174.87 (11) °, respectively (Table 1). The copper atoms are connected by the anions into chains, which elongate in the direction of the c axis. These chains are further be connected by O—H···O hydrogen bonding into layers, that are parallel to the a/b-plane. These layers are connected by the uncoordinated water molecules via hydrogen bonds into a three-dimensional hydrogen bonded network (Table 2 and Fig. 2).