metal-organic compounds
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Poly[[μ7-L-cysteato(2−)]disodium]
aBasis Department, Jilin Business and Technology College, Hao Yue Road No. 1606, Changchun, Jilin, People's Republic of China
*Correspondence e-mail: liufuhong123@gmail.com
The title compound {systematic name: poly[[μ7-(2R)-2-amino-3-sulfonatopropanoato]disodium]}, [Na2(C3H5NO5S)]n, was obtained through solvent-thermal reaction of L-cysteic acid and aqueous sodium hydroxide. The monomer consists of two Na+ cations that are coordinated to the deprotonated amino acid. The latter acts as donor utilizing all available coordination sites, viz. the amino, the carboxylate and the sulfonate residues, so producing a monomeric framework in which the two coordinated Na+ ions have different coordination spheres and geometries. One of the Na+ ions has an O5 coordination sphere with a typical geometric arrangement, intermediate between trigonal–bipyramidal and square–pyramidal; all the O atoms from the amino acid (three from the sulfonate and two from the caboxylate residues) act as donors. The second Na+ ion is tetracoordinated within an NO3 coordination sphere. The Na+ ion binds to the amino N atom, to one of the O atom of the carboxylic residue and to two O atoms of the sulfonate group in a distorted tetrahedral arrangement. As the sulfonate O atoms bind to both Na+ ions, a three-dimensional polymeric framework is obtained.
Related literature
For L-cysteic acid in coordination compounds, see: Hendrickson & Karle (1971); Ramanadham et al. (1973). For metal-organic frameworks of L-Cysteic acid, see: Bharadwaj et al. (1985); Riley et al. (2002); Huang et al. (2009).
Experimental
Crystal data
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Refinement
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Data collection: PROCESS-AUTO (Rigaku, 1998); cell PROCESS-AUTO; data reduction: CrystalStructure (Rigaku/MSC, 2002); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: publCIF (Westrip, 2010).
Supporting information
https://doi.org/10.1107/S1600536811035525/go2024sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536811035525/go2024Isup2.hkl
The title complex was synthesized through solvent-thermal reaction by L-Cysteic acid with NaOH aqueous as following method: 84.58 mg (0.5 mmol) of L-Cysteic acid, 10 mL 0.5% NaOH aqueous, were added to a 20 ml Teflon vessel. The vessel was sealed and placed inside a stainless steel autoclave, which was kept at 140°C for 72 h. Then the crystal suiting for X-ray single-crystal analysis was obtained.
H atoms bonded to N atom were located in a difference map and refined with distance restraints of N—H = 0.899–0.900 Å, and with Uiso(H) = 1.2Ueq(N). Other H atoms were positioned geometrically and refined using a riding model, with C—H = 0.970–0.981 Å and with Uiso(H) = 1.2 times Ueq(C).
Amino acids are of interest in coordination chemistry because they have a large number of highly flexible derivatives capable of forming a wide range of metal compexes. Recently, L-Cysteic acid, (Hendrickson et al., 1971), (Ramanadham et al. 1973) has become an important ligand in the coordination and construction of metal-organic frameworks (MOFs), as a result, some of these frameworks with unusual topologies have been reported by (Bharadwaj et al., 1985, Riley et al., 2002, and Huang et al. 2009). As a part of our work in amino acid coordination research we chose L-Cysteic acid as our ligand. The title compound has recently been prepared in our laboratory and its structure is reported here.
The molecular structure of [C3H5NNa2O5S]n is presented in Fig.1a-c. Fig.1a shows that two Na+ cations are coordinated to one L-Cysteic acid while Fig.1b shows the µ7 connectivity of each L-Cysteic acid. Each L-Cysteic acid chelates one Na+ cation with its O-donor of sulfonate group and of the carboxylate one, and chelates the other Na+ cation with another O-donor from the same sulfonate group and the amine N-donor. Fig.1c shows the coordination environment of the two Na+ cations: for Na1 it is five coordinated while for Na2 forms a 4 coordinated Na node. Moreover, Na1 and Na2 are bridged by one O atom from sulfonyl group. In conclusion, the Na cation and the L-Cysteic acid ligand construct a three-dimensional frameword with
P21/c, Fig.2.For L-cysteic acid in coordination compounds, see: Hendrickson & Karle (1971); Ramanadham et al. (1973). For metal-organic frameworks of L-Cysteic acid, see: Bharadwaj et al. (1985); Riley et al. (2002); Huang et al. (2009).
Data collection: PROCESS-AUTO (Rigaku, 1998); cell
PROCESS-AUTO (Rigaku, 1998); data reduction: CrystalStructure (Rigaku/MSC, 2002); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: publCIF (Westrip, 2010).[Na2(C3H5NO5S)] | F(000) = 432 |
Mr = 213.13 | Dx = 1.875 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 7309 reflections |
a = 5.7574 (12) Å | θ = 3.4–27.5° |
b = 11.875 (2) Å | µ = 0.52 mm−1 |
c = 11.691 (3) Å | T = 298 K |
β = 109.15 (3)° | Prism, colourless |
V = 755.1 (3) Å3 | 0.24 × 0.22 × 0.20 mm |
Z = 4 |
Rigaku SCX-MINI diffractometer | 1740 independent reflections |
Radiation source: fine-focus sealed tube, Rigaku SCX-MINI | 1463 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.044 |
ω scans | θmax = 27.5°, θmin = 3.4° |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | h = −7→7 |
Tmin = 0.885, Tmax = 0.903 | k = −15→15 |
7845 measured reflections | l = −15→15 |
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)] = 0.060 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.159 | H-atom parameters constrained |
S = 1.06 | w = 1/[σ2(Fo2) + (0.0698P)2 + 2.942P] where P = (Fo2 + 2Fc2)/3 |
1740 reflections | (Δ/σ)max < 0.001 |
109 parameters | Δρmax = 0.82 e Å−3 |
0 restraints | Δρmin = −0.94 e Å−3 |
[Na2(C3H5NO5S)] | V = 755.1 (3) Å3 |
Mr = 213.13 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 5.7574 (12) Å | µ = 0.52 mm−1 |
b = 11.875 (2) Å | T = 298 K |
c = 11.691 (3) Å | 0.24 × 0.22 × 0.20 mm |
β = 109.15 (3)° |
Rigaku SCX-MINI diffractometer | 1740 independent reflections |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | 1463 reflections with I > 2σ(I) |
Tmin = 0.885, Tmax = 0.903 | Rint = 0.044 |
7845 measured reflections |
R[F2 > 2σ(F2)] = 0.060 | 0 restraints |
wR(F2) = 0.159 | H-atom parameters constrained |
S = 1.06 | Δρmax = 0.82 e Å−3 |
1740 reflections | Δρmin = −0.94 e Å−3 |
109 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 | ||
Na2 | 0.8052 (6) | 0.7652 (3) | 0.4635 (3) | 0.0831 (9) | |
Na1 | 0.0476 (3) | 0.74867 (13) | 0.32535 (13) | 0.0217 (4) | |
C1 | 0.2111 (7) | 1.0060 (3) | 0.3139 (3) | 0.0182 (7) | |
C2 | 0.4308 (6) | 1.0333 (3) | 0.2716 (3) | 0.0172 (7) | |
H2 | 0.4404 | 1.1156 | 0.2680 | 0.021* | |
C3 | 0.3963 (7) | 0.9894 (3) | 0.1434 (3) | 0.0193 (7) | |
H3A | 0.5202 | 1.0242 | 0.1154 | 0.023* | |
H3B | 0.2372 | 1.0147 | 0.0904 | 0.023* | |
N1 | 0.6663 (6) | 0.9944 (3) | 0.3610 (3) | 0.0220 (7) | |
H1A | 0.7827 | 1.0134 | 0.3287 | 0.026* | |
H1B | 0.6904 | 1.0396 | 0.4257 | 0.026* | |
O1 | 0.2379 (5) | 0.9342 (2) | 0.3959 (2) | 0.0237 (6) | |
O2 | 0.0199 (5) | 1.0610 (2) | 0.2616 (3) | 0.0286 (7) | |
O3 | 0.2320 (6) | 0.7884 (3) | 0.1716 (3) | 0.0304 (7) | |
O4 | 0.6639 (5) | 0.8093 (2) | 0.1942 (3) | 0.0293 (7) | |
O5 | 0.3581 (5) | 0.8235 (2) | −0.0035 (2) | 0.0246 (6) | |
S1 | 0.41314 (16) | 0.84073 (7) | 0.12588 (8) | 0.0166 (3) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Na2 | 0.081 (2) | 0.097 (2) | 0.0771 (19) | 0.0052 (17) | 0.0339 (16) | 0.0134 (17) |
Na1 | 0.0211 (8) | 0.0228 (8) | 0.0202 (8) | 0.0001 (6) | 0.0056 (6) | 0.0015 (6) |
C1 | 0.0185 (17) | 0.0158 (17) | 0.0214 (18) | −0.0033 (14) | 0.0080 (14) | −0.0051 (14) |
C2 | 0.0168 (16) | 0.0161 (17) | 0.0210 (17) | 0.0001 (13) | 0.0095 (14) | 0.0002 (13) |
C3 | 0.0240 (18) | 0.0179 (17) | 0.0187 (17) | 0.0005 (14) | 0.0104 (15) | 0.0002 (14) |
N1 | 0.0144 (14) | 0.0333 (18) | 0.0184 (15) | −0.0015 (13) | 0.0054 (12) | −0.0058 (13) |
O1 | 0.0263 (14) | 0.0257 (14) | 0.0208 (13) | −0.0038 (11) | 0.0102 (11) | 0.0012 (11) |
O2 | 0.0187 (13) | 0.0296 (15) | 0.0399 (17) | 0.0049 (11) | 0.0128 (12) | 0.0082 (13) |
O3 | 0.0358 (17) | 0.0297 (16) | 0.0319 (16) | −0.0108 (13) | 0.0195 (14) | −0.0023 (13) |
O4 | 0.0251 (15) | 0.0282 (15) | 0.0276 (15) | 0.0067 (12) | −0.0010 (12) | −0.0012 (12) |
O5 | 0.0268 (14) | 0.0298 (15) | 0.0180 (13) | −0.0052 (11) | 0.0084 (11) | −0.0049 (11) |
S1 | 0.0180 (4) | 0.0170 (4) | 0.0151 (4) | −0.0012 (3) | 0.0059 (3) | −0.0006 (3) |
Na1—O1 | 2.478 (3) | C2—N1 | 1.488 (5) |
Na1—O2i | 2.427 (3) | C2—C3 | 1.538 (5) |
Na1—O3 | 2.415 (4) | C2—H2 | 0.9800 |
Na1—O4ii | 2.351 (4) | C3—S1 | 1.783 (4) |
Na1—O5iii | 2.364 (3) | C3—H3A | 0.9700 |
Na2—N1 | 2.976 (5) | C3—H3B | 0.9700 |
Na2—O3iv | 2.905 (5) | N1—H1A | 0.9000 |
Na2—O4 | 3.028 (5) | N1—H1B | 0.9000 |
Na2—O5iii | 2.922 (5) | O3—S1 | 1.457 (3) |
C1—O2 | 1.253 (5) | O4—S1 | 1.451 (3) |
C1—O1 | 1.254 (5) | O5—S1 | 1.455 (3) |
C1—C2 | 1.537 (5) | ||
O1—Na1—O5iii | 84.93 (10) | C1—C2—H2 | 106.7 |
O1—Na1—O3 | 79.62 (12) | C3—C2—H2 | 106.7 |
O3—Na1—O4ii | 90.18 (13) | C2—C3—S1 | 117.0 (3) |
O4ii—Na1—O5iii | 162.00 (13) | C2—C3—H3A | 108.1 |
O3iv—Na2—N1 | 125.41 (16) | S1—C3—H3A | 108.1 |
O3iv—Na2—O4 | 140.68 (16) | C2—C3—H3B | 108.1 |
O3iv—Na2—O5iii | 110.50 (14) | S1—C3—H3B | 108.1 |
O4—Na2—N1 | 58.54 (11) | H3A—C3—H3B | 107.3 |
O4—Na2—O5iii | 104.59 (13) | C2—N1—H1A | 105.0 |
O5iii—Na2—N1 | 104.53 (14) | C2—N1—H1B | 105.0 |
O2—C1—O1 | 126.6 (3) | H1A—N1—H1B | 105.9 |
O2—C1—C2 | 114.6 (3) | O4—S1—O5 | 111.96 (17) |
O1—C1—C2 | 118.8 (3) | O4—S1—O3 | 113.02 (19) |
N1—C2—C1 | 111.4 (3) | O5—S1—O3 | 112.53 (17) |
N1—C2—C3 | 112.1 (3) | O4—S1—C3 | 105.86 (18) |
C1—C2—C3 | 112.7 (3) | O5—S1—C3 | 104.89 (17) |
N1—C2—H2 | 106.7 | O3—S1—C3 | 107.93 (17) |
Symmetry codes: (i) −x, y−1/2, −z+1/2; (ii) x−1, y, z; (iii) x, −y+3/2, z+1/2; (iv) x+1, −y+3/2, z+1/2. |
Experimental details
Crystal data | |
Chemical formula | [Na2(C3H5NO5S)] |
Mr | 213.13 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 298 |
a, b, c (Å) | 5.7574 (12), 11.875 (2), 11.691 (3) |
β (°) | 109.15 (3) |
V (Å3) | 755.1 (3) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.52 |
Crystal size (mm) | 0.24 × 0.22 × 0.20 |
Data collection | |
Diffractometer | Rigaku SCX-MINI |
Absorption correction | Multi-scan (ABSCOR; Higashi, 1995) |
Tmin, Tmax | 0.885, 0.903 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 7845, 1740, 1463 |
Rint | 0.044 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.060, 0.159, 1.06 |
No. of reflections | 1740 |
No. of parameters | 109 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.82, −0.94 |
Computer programs: PROCESS-AUTO (Rigaku, 1998), CrystalStructure (Rigaku/MSC, 2002), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997), publCIF (Westrip, 2010).
Na1—O1 | 2.478 (3) | Na2—N1 | 2.976 (5) |
Na1—O2i | 2.427 (3) | Na2—O3iv | 2.905 (5) |
Na1—O3 | 2.415 (4) | Na2—O4 | 3.028 (5) |
Na1—O4ii | 2.351 (4) | Na2—O5iii | 2.922 (5) |
Na1—O5iii | 2.364 (3) |
Symmetry codes: (i) −x, y−1/2, −z+1/2; (ii) x−1, y, z; (iii) x, −y+3/2, z+1/2; (iv) x+1, −y+3/2, z+1/2. |
Acknowledgements
The author thanks Jilin Business and Technology College for financial support.
References
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Amino acids are of interest in coordination chemistry because they have a large number of highly flexible derivatives capable of forming a wide range of metal compexes. Recently, L-Cysteic acid, (Hendrickson et al., 1971), (Ramanadham et al. 1973) has become an important ligand in the coordination and construction of metal-organic frameworks (MOFs), as a result, some of these frameworks with unusual topologies have been reported by (Bharadwaj et al., 1985, Riley et al., 2002, and Huang et al. 2009). As a part of our work in amino acid coordination research we chose L-Cysteic acid as our ligand. The title compound has recently been prepared in our laboratory and its structure is reported here.
The molecular structure of [C3H5NNa2O5S]n is presented in Fig.1a-c. Fig.1a shows that two Na+ cations are coordinated to one L-Cysteic acid while Fig.1b shows the µ7 connectivity of each L-Cysteic acid. Each L-Cysteic acid chelates one Na+ cation with its O-donor of sulfonate group and of the carboxylate one, and chelates the other Na+ cation with another O-donor from the same sulfonate group and the amine N-donor. Fig.1c shows the coordination environment of the two Na+ cations: for Na1 it is five coordinated while for Na2 forms a 4 coordinated Na node. Moreover, Na1 and Na2 are bridged by one O atom from sulfonyl group. In conclusion, the Na cation and the L-Cysteic acid ligand construct a three-dimensional frameword with space group P21/c, Fig.2.