Supporting information
Crystallographic Information File (CIF) https://doi.org/10.1107/S160053680703766X/bi2217sup1.cif | |
Structure factor file (CIF format) https://doi.org/10.1107/S160053680703766X/bi2217Isup2.hkl |
CCDC reference: 1101492
Key indicators
- Single-crystal X-ray study
- T = 293 K
- Mean (C-C) = 0.006 Å
- R factor = 0.033
- wR factor = 0.091
- Data-to-parameter ratio = 7.4
checkCIF/PLATON results
No syntax errors found
Alert level B PLAT115_ALERT_5_B ADDSYM Detects Noncrystallographic Inversion ... 86 PerFi PLAT230_ALERT_2_B Hirshfeld Test Diff for N1 - C2 .. 7.85 su PLAT731_ALERT_1_B Bond Calc 0.82(5), Rep 0.820(10) ...... 5.00 su-Ra O1 -H11 1.555 1.555 PLAT731_ALERT_1_B Bond Calc 0.82(5), Rep 0.820(10) ...... 5.00 su-Ra O5 -H51 1.555 1.555 PLAT731_ALERT_1_B Bond Calc 0.82(5), Rep 0.820(10) ...... 5.00 su-Ra O6 -H61 1.555 1.555 PLAT731_ALERT_1_B Bond Calc 0.82(6), Rep 0.820(10) ...... 6.00 su-Ra O6 -H62 1.555 1.555 PLAT735_ALERT_1_B D-H Calc 0.82(5), Rep 0.820(10) ...... 5.00 su-Ra O1 -H11 1.555 1.555 PLAT735_ALERT_1_B D-H Calc 0.82(5), Rep 0.820(10) ...... 5.00 su-Ra O5 -H51 1.555 1.555 PLAT735_ALERT_1_B D-H Calc 0.82(6), Rep 0.820(10) ...... 6.00 su-Ra O6 -H62 1.555 1.555 PLAT735_ALERT_1_B D-H Calc 0.82(5), Rep 0.820(10) ...... 5.00 su-Ra O6 -H61 1.555 1.555
Alert level C STRVA01_ALERT_4_C Flack test results are ambiguous. From the CIF: _refine_ls_abs_structure_Flack 0.390 From the CIF: _refine_ls_abs_structure_Flack_su 0.030 PLAT066_ALERT_1_C Predicted and Reported Transmissions Identical . ? PLAT089_ALERT_3_C Poor Data / Parameter Ratio (Zmax .LT. 18) ..... 7.36 PLAT230_ALERT_2_C Hirshfeld Test Diff for N1 - C6 .. 6.05 su PLAT731_ALERT_1_C Bond Calc 0.82(4), Rep 0.820(10) ...... 4.00 su-Ra O1 -H12 1.555 1.555 PLAT731_ALERT_1_C Bond Calc 0.82(4), Rep 0.820(10) ...... 4.00 su-Ra O2 -H22 1.555 1.555 PLAT731_ALERT_1_C Bond Calc 0.81(4), Rep 0.820(10) ...... 4.00 su-Ra O3 -H31 1.555 1.555 PLAT731_ALERT_1_C Bond Calc 0.81(4), Rep 0.810(10) ...... 4.00 su-Ra O3 -H32 1.555 1.555 PLAT731_ALERT_1_C Bond Calc 0.82(4), Rep 0.820(10) ...... 4.00 su-Ra O4 -H42 1.555 1.555 PLAT731_ALERT_1_C Bond Calc 0.82(4), Rep 0.820(10) ...... 4.00 su-Ra O5 -H52 1.555 1.555 PLAT731_ALERT_1_C Bond Calc 0.82(3), Rep 0.820(10) ...... 3.00 su-Ra O7 -H72 1.555 1.555 PLAT731_ALERT_1_C Bond Calc 0.82(4), Rep 0.820(10) ...... 4.00 su-Ra O8 -H81 1.555 1.555 PLAT731_ALERT_1_C Bond Calc 0.81(4), Rep 0.820(10) ...... 4.00 su-Ra O8 -H82 1.555 1.555 PLAT732_ALERT_1_C Angle Calc 107(5), Rep 107(2) ...... 2.50 su-Ra H11 -O1 -H12 1.555 1.555 1.555 PLAT732_ALERT_1_C Angle Calc 107(5), Rep 107(2) ...... 2.50 su-Ra H21 -O2 -H22 1.555 1.555 1.555 PLAT732_ALERT_1_C Angle Calc 108(5), Rep 109(2) ...... 2.50 su-Ra H31 -O3 -H32 1.555 1.555 1.555 PLAT732_ALERT_1_C Angle Calc 107(5), Rep 107(2) ...... 2.50 su-Ra H51 -O5 -H52 1.555 1.555 1.555 PLAT732_ALERT_1_C Angle Calc 108(7), Rep 107(2) ...... 3.50 su-Ra H61 -O6 -H62 1.555 1.555 1.555 PLAT732_ALERT_1_C Angle Calc 106(5), Rep 107(2) ...... 2.50 su-Ra H71 -O7 -H72 1.555 1.555 1.555 PLAT732_ALERT_1_C Angle Calc 108(5), Rep 108(2) ...... 2.50 su-Ra H81 -O8 -H82 1.555 1.555 1.555 PLAT735_ALERT_1_C D-H Calc 0.82(4), Rep 0.820(10) ...... 4.00 su-Ra O1 -H12 1.555 1.555 PLAT735_ALERT_1_C D-H Calc 0.82(4), Rep 0.820(10) ...... 4.00 su-Ra O2 -H22 1.555 1.555 PLAT735_ALERT_1_C D-H Calc 0.81(4), Rep 0.820(10) ...... 4.00 su-Ra O3 -H31 1.555 1.555 PLAT735_ALERT_1_C D-H Calc 0.81(4), Rep 0.810(10) ...... 4.00 su-Ra O3 -H32 1.555 1.555 PLAT735_ALERT_1_C D-H Calc 0.82(4), Rep 0.820(10) ...... 4.00 su-Ra O4 -H42 1.555 1.555 PLAT735_ALERT_1_C D-H Calc 0.82(4), Rep 0.820(10) ...... 4.00 su-Ra O5 -H52 1.555 1.555 PLAT735_ALERT_1_C D-H Calc 0.82(3), Rep 0.820(10) ...... 3.00 su-Ra O7 -H72 1.555 1.555 PLAT735_ALERT_1_C D-H Calc 0.82(4), Rep 0.820(10) ...... 4.00 su-Ra O8 -H81 1.555 1.555 PLAT735_ALERT_1_C D-H Calc 0.81(4), Rep 0.820(10) ...... 4.00 su-Ra O8 -H82 1.555 1.555 PLAT736_ALERT_1_C H...A Calc 1.98(4), Rep 1.980(10) ...... 4.00 su-Ra H22 -O7 1.555 3.555 PLAT736_ALERT_1_C H...A Calc 2.06(4), Rep 2.050(10) ...... 4.00 su-Ra H31 -O5 1.555 3.545 PLAT736_ALERT_1_C H...A Calc 1.96(4), Rep 1.960(10) ...... 4.00 su-Ra H32 -N5 1.555 2.565 PLAT736_ALERT_1_C H...A Calc 1.93(4), Rep 1.930(10) ...... 4.00 su-Ra H42 -O11 1.555 2.564 PLAT736_ALERT_1_C H...A Calc 1.97(5), Rep 1.97(2) ...... 2.50 su-Ra H51 -O11 1.555 2.564 PLAT736_ALERT_1_C H...A Calc 2.01(5), Rep 2.01(2) ...... 2.50 su-Ra H61 -O10 1.555 1.565 PLAT736_ALERT_1_C H...A Calc 2.05(5), Rep 2.04(2) ...... 2.50 su-Ra H81 -O7 1.555 1.555 PLAT736_ALERT_1_C H...A Calc 1.98(4), Rep 1.980(10) ...... 4.00 su-Ra H82 -O12 1.555 2.554
Alert level G REFLT03_ALERT_4_G WARNING: Large fraction of Friedel related reflns may be needed to determine absolute structure From the CIF: _diffrn_reflns_theta_max 25.19 From the CIF: _reflns_number_total 3349 Count of symmetry unique reflns 2824 Completeness (_total/calc) 118.59% TEST3: Check Friedels for noncentro structure Estimate of Friedel pairs measured 525 Fraction of Friedel pairs measured 0.186 Are heavy atom types Z>Si present yes PLAT033_ALERT_2_G Flack Parameter Value Deviates 2 * su from zero. 0.39 PLAT199_ALERT_1_G Check the Reported _cell_measurement_temperature 293 K PLAT200_ALERT_1_G Check the Reported _diffrn_ambient_temperature . 293 K PLAT794_ALERT_5_G Check Predicted Bond Valency for Mn1 (2) 1.99 PLAT860_ALERT_3_G Note: Number of Least-Squares Restraints ....... 26
0 ALERT level A = In general: serious problem 10 ALERT level B = Potentially serious problem 37 ALERT level C = Check and explain 6 ALERT level G = General alerts; check 44 ALERT type 1 CIF construction/syntax error, inconsistent or missing data 3 ALERT type 2 Indicator that the structure model may be wrong or deficient 2 ALERT type 3 Indicator that the structure quality may be low 2 ALERT type 4 Improvement, methodology, query or suggestion 2 ALERT type 5 Informative message, check
A mixture of MnSO4 (0.5 mmol), pyridine-2,6-dicarboxylic acid (0.5 mmol), NaOH (1 mmol), 4,4'-bipyridine (0.5 mmol), H2O (8 ml) and ethanol (8 ml) were placed in a 25 ml Teflon-lined stainless steel autoclave and heated at 433 K for two days. On cooling to room temperature, pale pink crystals were obtained with a yield of 12%. Elemental analysis calculated: C 47.89, H 5.17, N 10.35%; found: C 47.87, H 5.21, N 10.33%.
H atoms bound to C atoms were placed geometrically and refined as riding with C—H= 0.93 Å and Uiso(H) = 1.2Ueq(C). H atoms of the water molecules were located from difference Fourier maps and were refined with distance restraints of O—H = 0.82 (1) Å and H···H = 1.35 (2) Å, and with Uiso(H) = 1.5Ueq(O). The [Mn(C10H8N2)2(H2O)4]2+ cations exhibit non-crystallographic inversion symmetry. The refined Flack parameter (Flack, 1983) from 530 Freidel pairs is 0.39 (3).
The title compound is isostructural with its FeII analogue (Gao et al., 2007). In the [Mn(C10H8N2)2(H2O)4]2+ cations, MnII is hexacoordinated in an octahedral manner by four water molecules in the equatorial plane and two N atoms in the axial positions from two 4,4'-bipyridine molecules (Figure 1). The Mn—N and Mn—O bond lengths are in the range 2.284 (4)–2.291 (4) and 2.144 (3)–2.222 (3) Å, respectively. The cations lie in layers in the bc planes. Pyridine-2,6-dicarboxylate anions and water molecules lie between these layers, forming an extensive hydrogen-bond network (Figure 2).
For the analogous FeII compound, see: Gao et al. (2007).
Data collection: APEX2 (Bruker, 2004); cell refinement: SAINT-Plus (Bruker, 2001); data reduction: SAINT-Plus; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Bruker, 2001); software used to prepare material for publication: SHELXTL.
Fig. 1. The molecular structure of the title compound, showing 30% probability displacement ellipsoids for non-H atoms. | |
Fig. 2. Packing diagram showing hydrogen bonds as dashed lines. |
[Mn(C10H8N2)2(H2O)4](C7H3NO4)·4H2O | F(000) = 1412 |
Mr = 676.54 | Dx = 1.434 Mg m−3 |
Monoclinic, Cc | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: C -2yc | Cell parameters from 3349 reflections |
a = 18.407 (2) Å | θ = 1.6–25.2° |
b = 6.8231 (10) Å | µ = 0.49 mm−1 |
c = 25.2925 (10) Å | T = 293 K |
β = 99.40 (2)° | Cube, pink |
V = 3133.9 (6) Å3 | 0.15 × 0.15 × 0.15 mm |
Z = 4 |
Bruker APEX II CCD diffractometer | 3349 independent reflections |
Radiation source: fine-focus sealed tube | 2946 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.018 |
ω scans | θmax = 25.2°, θmin = 1.6° |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | h = −19→21 |
Tmin = 0.930, Tmax = 0.930 | k = −8→4 |
5104 measured reflections | l = −29→12 |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.033 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.091 | w = 1/[σ2(Fo2) + (0.0566P)2 + 0.8622P] where P = (Fo2 + 2Fc2)/3 |
S = 1.05 | (Δ/σ)max < 0.001 |
3349 reflections | Δρmax = 0.33 e Å−3 |
455 parameters | Δρmin = −0.25 e Å−3 |
26 restraints | Absolute structure: Flack (1983), 530 Friedel pairs |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: 0.39 (3) |
[Mn(C10H8N2)2(H2O)4](C7H3NO4)·4H2O | V = 3133.9 (6) Å3 |
Mr = 676.54 | Z = 4 |
Monoclinic, Cc | Mo Kα radiation |
a = 18.407 (2) Å | µ = 0.49 mm−1 |
b = 6.8231 (10) Å | T = 293 K |
c = 25.2925 (10) Å | 0.15 × 0.15 × 0.15 mm |
β = 99.40 (2)° |
Bruker APEX II CCD diffractometer | 3349 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | 2946 reflections with I > 2σ(I) |
Tmin = 0.930, Tmax = 0.930 | Rint = 0.018 |
5104 measured reflections |
R[F2 > 2σ(F2)] = 0.033 | H atoms treated by a mixture of independent and constrained refinement |
wR(F2) = 0.091 | Δρmax = 0.33 e Å−3 |
S = 1.05 | Δρmin = −0.25 e Å−3 |
3349 reflections | Absolute structure: Flack (1983), 530 Friedel pairs |
455 parameters | Absolute structure parameter: 0.39 (3) |
26 restraints |
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 | ||
Mn1 | 0.82217 (6) | 0.73736 (8) | 0.62273 (5) | 0.03257 (14) | |
C1 | 0.5731 (2) | 0.1741 (6) | 0.81919 (19) | 0.0408 (10) | |
C2 | 0.5712 (5) | 0.2656 (5) | 0.8731 (3) | 0.0358 (7) | |
C3 | 0.5691 (3) | 0.4672 (5) | 0.8799 (2) | 0.0421 (10) | |
H3A | 0.5680 | 0.5491 | 0.8504 | 0.050* | |
C4 | 0.5684 (2) | 0.5490 (6) | 0.93058 (18) | 0.0434 (10) | |
H4A | 0.5665 | 0.6844 | 0.9342 | 0.052* | |
C5 | 0.5706 (2) | 0.4305 (6) | 0.97556 (17) | 0.0414 (9) | |
H5A | 0.5704 | 0.4872 | 1.0090 | 0.050* | |
C6 | 0.5732 (3) | 0.2276 (6) | 0.9708 (2) | 0.0363 (12) | |
C7 | 0.5791 (2) | 0.0999 (5) | 1.02024 (16) | 0.0370 (8) | |
C8 | 0.8772 (3) | 0.8253 (8) | 0.74589 (18) | 0.0497 (12) | |
H8A | 0.9222 | 0.8122 | 0.7340 | 0.060* | |
C9 | 0.8771 (2) | 0.8419 (7) | 0.80050 (18) | 0.0464 (11) | |
H9A | 0.9216 | 0.8419 | 0.8240 | 0.056* | |
C10 | 0.8112 (2) | 0.8586 (5) | 0.82070 (16) | 0.0301 (9) | |
C11 | 0.7466 (3) | 0.8699 (8) | 0.78146 (19) | 0.0500 (12) | |
H11A | 0.7010 | 0.8890 | 0.7919 | 0.060* | |
C12 | 0.7516 (3) | 0.8527 (8) | 0.72754 (19) | 0.0520 (13) | |
H12A | 0.7083 | 0.8591 | 0.7028 | 0.062* | |
C13 | 0.8082 (2) | 0.8624 (5) | 0.87922 (16) | 0.0310 (9) | |
C14 | 0.8729 (3) | 0.8650 (6) | 0.91719 (16) | 0.0396 (10) | |
H14A | 0.9187 | 0.8655 | 0.9063 | 0.048* | |
C15 | 0.8674 (3) | 0.8669 (6) | 0.97181 (18) | 0.0424 (11) | |
H15A | 0.9108 | 0.8682 | 0.9965 | 0.051* | |
C16 | 0.7425 (3) | 0.8638 (7) | 0.95350 (18) | 0.0474 (11) | |
H16A | 0.6975 | 0.8623 | 0.9657 | 0.057* | |
C17 | 0.7411 (3) | 0.8627 (6) | 0.89898 (18) | 0.0421 (10) | |
H17A | 0.6965 | 0.8623 | 0.8756 | 0.051* | |
C18 | 0.8957 (2) | 0.6419 (6) | 0.51675 (17) | 0.0412 (10) | |
H18A | 0.9398 | 0.6410 | 0.5407 | 0.049* | |
C19 | 0.8986 (3) | 0.6322 (7) | 0.46217 (16) | 0.0436 (11) | |
H19A | 0.9437 | 0.6237 | 0.4503 | 0.052* | |
C20 | 0.8331 (2) | 0.6353 (5) | 0.42529 (16) | 0.0309 (9) | |
C21 | 0.7675 (3) | 0.6402 (7) | 0.44593 (18) | 0.0438 (11) | |
H21A | 0.7225 | 0.6383 | 0.4230 | 0.053* | |
C22 | 0.7698 (3) | 0.6477 (7) | 0.50062 (19) | 0.0473 (11) | |
H22A | 0.7252 | 0.6496 | 0.5134 | 0.057* | |
C23 | 0.8328 (2) | 0.6382 (5) | 0.36570 (16) | 0.0315 (9) | |
C24 | 0.7671 (3) | 0.6310 (7) | 0.32853 (19) | 0.0495 (12) | |
H24A | 0.7221 | 0.6229 | 0.3406 | 0.059* | |
C25 | 0.7691 (3) | 0.6360 (7) | 0.27403 (19) | 0.0502 (12) | |
H25A | 0.7247 | 0.6304 | 0.2505 | 0.060* | |
C26 | 0.8949 (3) | 0.6552 (8) | 0.2887 (2) | 0.0598 (14) | |
H26A | 0.9391 | 0.6630 | 0.2754 | 0.072* | |
C27 | 0.8980 (3) | 0.6511 (7) | 0.34413 (19) | 0.0489 (12) | |
H27A | 0.9432 | 0.6570 | 0.3667 | 0.059* | |
N1 | 0.5734 (2) | 0.1475 (6) | 0.91978 (18) | 0.0500 (10) | |
N2 | 0.8152 (2) | 0.8273 (5) | 0.70905 (14) | 0.0366 (8) | |
N3 | 0.8036 (2) | 0.8668 (5) | 0.99039 (14) | 0.0402 (9) | |
N4 | 0.83172 (19) | 0.6525 (5) | 0.53679 (13) | 0.0347 (8) | |
N5 | 0.8318 (2) | 0.6486 (5) | 0.25320 (15) | 0.0449 (9) | |
O1 | 0.7849 (2) | 1.0206 (4) | 0.59321 (13) | 0.0497 (8) | |
H11 | 0.760 (3) | 1.104 (6) | 0.6050 (19) | 0.075* | |
H12 | 0.796 (3) | 1.064 (7) | 0.5654 (14) | 0.075* | |
O2 | 0.93765 (18) | 0.8415 (4) | 0.63048 (14) | 0.0485 (8) | |
H21 | 0.948 (3) | 0.958 (2) | 0.630 (2) | 0.073* | |
H22 | 0.9748 (18) | 0.785 (6) | 0.645 (2) | 0.073* | |
O3 | 0.8599 (2) | 0.4530 (4) | 0.65233 (13) | 0.0515 (8) | |
H31 | 0.894 (2) | 0.388 (7) | 0.646 (2) | 0.077* | |
H32 | 0.851 (3) | 0.420 (8) | 0.6814 (12) | 0.077* | |
O4 | 0.70691 (17) | 0.6294 (4) | 0.61365 (13) | 0.0436 (7) | |
H41 | 0.693 (2) | 0.514 (2) | 0.613 (2) | 0.065* | |
H42 | 0.6709 (18) | 0.694 (5) | 0.600 (2) | 0.065* | |
O5 | 0.4858 (3) | 0.7285 (6) | 0.6359 (2) | 0.0613 (13) | |
H51 | 0.511 (3) | 0.737 (9) | 0.6122 (17) | 0.092* | |
H52 | 0.514 (3) | 0.722 (10) | 0.6646 (12) | 0.092* | |
O6 | 0.5642 (3) | 0.6923 (6) | 0.73882 (15) | 0.0740 (10) | |
H61 | 0.566 (4) | 0.769 (8) | 0.7639 (18) | 0.111* | |
H62 | 0.597 (3) | 0.611 (8) | 0.747 (3) | 0.111* | |
O7 | 0.5641 (2) | 0.1488 (5) | 0.68155 (14) | 0.0581 (10) | |
H71 | 0.571 (4) | 0.179 (7) | 0.7135 (7) | 0.087* | |
H72 | 0.548 (3) | 0.037 (4) | 0.680 (2) | 0.087* | |
O8 | 0.6591 (3) | 0.2453 (4) | 0.60733 (18) | 0.0517 (12) | |
H81 | 0.638 (3) | 0.222 (8) | 0.6326 (14) | 0.078* | |
H82 | 0.634 (3) | 0.204 (8) | 0.5802 (12) | 0.078* | |
O9 | 0.5725 (3) | 0.2894 (6) | 0.77983 (15) | 0.0566 (11) | |
O10 | 0.57394 (19) | −0.0066 (4) | 0.81609 (12) | 0.0498 (8) | |
O11 | 0.58120 (19) | 0.1830 (5) | 1.06520 (12) | 0.0499 (8) | |
O12 | 0.58386 (18) | −0.0786 (4) | 1.01351 (12) | 0.0484 (7) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Mn1 | 0.0349 (2) | 0.0397 (3) | 0.0231 (2) | 0.0010 (3) | 0.00508 (16) | 0.0010 (2) |
C1 | 0.030 (2) | 0.050 (2) | 0.041 (2) | 0.0043 (19) | 0.0021 (18) | −0.001 (2) |
C2 | 0.0228 (13) | 0.0455 (16) | 0.0374 (15) | 0.002 (2) | 0.0003 (11) | 0.005 (2) |
C3 | 0.0371 (18) | 0.0439 (17) | 0.043 (3) | 0.002 (2) | −0.0005 (18) | 0.0038 (19) |
C4 | 0.042 (2) | 0.0342 (19) | 0.052 (3) | 0.0047 (18) | 0.0020 (19) | −0.0038 (18) |
C5 | 0.038 (2) | 0.044 (2) | 0.040 (2) | 0.0005 (18) | 0.0026 (17) | −0.0120 (19) |
C6 | 0.029 (2) | 0.043 (2) | 0.037 (3) | −0.0019 (18) | 0.006 (2) | −0.0073 (18) |
C7 | 0.0320 (19) | 0.046 (2) | 0.034 (2) | −0.0036 (17) | 0.0075 (16) | −0.0073 (17) |
C8 | 0.034 (3) | 0.087 (3) | 0.031 (2) | −0.004 (2) | 0.011 (2) | −0.007 (2) |
C9 | 0.026 (2) | 0.081 (3) | 0.029 (2) | −0.001 (2) | −0.001 (2) | −0.005 (2) |
C10 | 0.033 (2) | 0.0304 (17) | 0.027 (2) | 0.0008 (16) | 0.0053 (18) | −0.0010 (15) |
C11 | 0.032 (3) | 0.081 (3) | 0.040 (3) | 0.008 (2) | 0.012 (2) | −0.009 (2) |
C12 | 0.041 (3) | 0.082 (3) | 0.031 (3) | 0.014 (2) | 0.001 (2) | −0.005 (2) |
C13 | 0.036 (3) | 0.0260 (16) | 0.030 (2) | 0.0016 (16) | 0.0035 (19) | −0.0032 (15) |
C14 | 0.038 (3) | 0.059 (2) | 0.023 (2) | 0.000 (2) | 0.007 (2) | −0.0020 (18) |
C15 | 0.040 (3) | 0.052 (2) | 0.031 (2) | −0.004 (2) | −0.005 (2) | −0.0027 (18) |
C16 | 0.046 (3) | 0.060 (3) | 0.039 (3) | 0.003 (2) | 0.016 (2) | 0.001 (2) |
C17 | 0.037 (3) | 0.058 (2) | 0.033 (2) | 0.003 (2) | 0.008 (2) | −0.0036 (19) |
C18 | 0.033 (2) | 0.061 (3) | 0.028 (2) | 0.009 (2) | −0.0001 (19) | −0.0049 (19) |
C19 | 0.036 (3) | 0.070 (3) | 0.024 (2) | 0.005 (2) | 0.004 (2) | −0.004 (2) |
C20 | 0.038 (2) | 0.0291 (17) | 0.025 (2) | 0.0008 (16) | 0.0048 (18) | −0.0019 (15) |
C21 | 0.033 (3) | 0.069 (3) | 0.029 (2) | −0.007 (2) | 0.003 (2) | −0.007 (2) |
C22 | 0.035 (3) | 0.074 (3) | 0.033 (2) | −0.007 (2) | 0.008 (2) | −0.007 (2) |
C23 | 0.039 (2) | 0.0308 (17) | 0.027 (2) | 0.0023 (17) | 0.0116 (18) | −0.0018 (15) |
C24 | 0.036 (3) | 0.074 (3) | 0.039 (3) | 0.003 (2) | 0.008 (2) | 0.001 (2) |
C25 | 0.050 (3) | 0.070 (3) | 0.031 (3) | 0.003 (2) | 0.008 (2) | 0.000 (2) |
C26 | 0.057 (3) | 0.091 (4) | 0.036 (3) | −0.007 (3) | 0.022 (3) | −0.008 (3) |
C27 | 0.037 (3) | 0.074 (3) | 0.036 (3) | −0.004 (2) | 0.007 (2) | −0.005 (2) |
N1 | 0.039 (2) | 0.058 (2) | 0.052 (2) | 0.0024 (19) | 0.0071 (18) | −0.0018 (19) |
N2 | 0.038 (2) | 0.0420 (18) | 0.030 (2) | 0.0026 (16) | 0.0047 (16) | −0.0013 (15) |
N3 | 0.053 (2) | 0.0439 (18) | 0.0256 (19) | 0.0023 (16) | 0.0104 (17) | −0.0004 (15) |
N4 | 0.037 (2) | 0.0417 (19) | 0.0257 (19) | −0.0023 (15) | 0.0047 (16) | −0.0021 (15) |
N5 | 0.058 (3) | 0.0468 (19) | 0.031 (2) | −0.0045 (18) | 0.0106 (18) | −0.0048 (16) |
O1 | 0.067 (2) | 0.0500 (17) | 0.0366 (18) | 0.0176 (16) | 0.0209 (16) | 0.0105 (14) |
O2 | 0.0414 (19) | 0.0535 (16) | 0.050 (2) | −0.0056 (15) | 0.0066 (16) | −0.0030 (15) |
O3 | 0.075 (3) | 0.0473 (16) | 0.0361 (17) | 0.0218 (16) | 0.0209 (17) | 0.0117 (14) |
O4 | 0.0395 (19) | 0.0456 (15) | 0.0449 (18) | −0.0041 (13) | 0.0041 (15) | 0.0012 (14) |
O5 | 0.059 (3) | 0.068 (2) | 0.062 (3) | 0.0074 (19) | 0.026 (3) | 0.0148 (19) |
O6 | 0.088 (3) | 0.084 (3) | 0.050 (2) | −0.005 (2) | 0.0095 (19) | −0.011 (2) |
O7 | 0.074 (3) | 0.053 (2) | 0.048 (2) | −0.0077 (18) | 0.015 (2) | −0.0040 (16) |
O8 | 0.054 (3) | 0.055 (2) | 0.047 (3) | −0.0064 (15) | 0.012 (2) | −0.0069 (15) |
O9 | 0.072 (3) | 0.0643 (19) | 0.033 (2) | 0.007 (2) | 0.0086 (19) | 0.0020 (18) |
O10 | 0.061 (2) | 0.0491 (17) | 0.0388 (16) | 0.0013 (15) | 0.0053 (14) | −0.0098 (14) |
O11 | 0.056 (2) | 0.0596 (18) | 0.0355 (18) | −0.0070 (16) | 0.0117 (15) | −0.0124 (15) |
O12 | 0.0629 (19) | 0.0427 (15) | 0.0390 (16) | 0.0005 (15) | 0.0065 (14) | 0.0000 (13) |
Mn1—O1 | 2.144 (3) | C16—H16A | 0.930 |
Mn1—O3 | 2.153 (3) | C17—H17A | 0.930 |
Mn1—O2 | 2.219 (4) | C18—N4 | 1.357 (6) |
Mn1—O4 | 2.222 (3) | C18—C19 | 1.392 (6) |
Mn1—N4 | 2.284 (4) | C18—H18A | 0.930 |
Mn1—N2 | 2.291 (4) | C19—C20 | 1.399 (6) |
C1—O10 | 1.236 (5) | C19—H19A | 0.930 |
C1—O9 | 1.267 (6) | C20—C21 | 1.392 (6) |
C1—C2 | 1.504 (9) | C20—C23 | 1.506 (5) |
C2—C3 | 1.388 (5) | C21—C22 | 1.378 (6) |
C2—N1 | 1.425 (8) | C21—H21A | 0.930 |
C3—C4 | 1.400 (7) | C22—N4 | 1.340 (6) |
C3—H3A | 0.930 | C22—H22A | 0.930 |
C4—C5 | 1.391 (6) | C23—C27 | 1.399 (7) |
C4—H4A | 0.930 | C23—C24 | 1.407 (7) |
C5—C6 | 1.391 (5) | C24—C25 | 1.385 (7) |
C5—H5A | 0.930 | C24—H24A | 0.930 |
C6—N1 | 1.402 (6) | C25—N5 | 1.349 (7) |
C6—C7 | 1.514 (6) | C25—H25A | 0.930 |
C7—O12 | 1.235 (4) | C26—N5 | 1.347 (7) |
C7—O11 | 1.265 (5) | C26—C27 | 1.395 (7) |
C8—N2 | 1.350 (6) | C26—H26A | 0.930 |
C8—C9 | 1.386 (6) | C27—H27A | 0.930 |
C8—H8A | 0.930 | O1—H11 | 0.82 (1) |
C9—C10 | 1.396 (6) | O1—H12 | 0.82 (1) |
C9—H9A | 0.930 | O2—H21 | 0.82 (1) |
C10—C11 | 1.421 (6) | O2—H22 | 0.82 (1) |
C10—C13 | 1.490 (5) | O3—H31 | 0.82 (1) |
C11—C12 | 1.387 (7) | O3—H32 | 0.81 (1) |
C11—H11A | 0.930 | O4—H41 | 0.83 (1) |
C12—N2 | 1.341 (6) | O4—H42 | 0.82 (1) |
C12—H12A | 0.930 | O5—H51 | 0.82 (1) |
C13—C14 | 1.402 (6) | O5—H52 | 0.82 (1) |
C13—C17 | 1.406 (6) | O6—H61 | 0.82 (1) |
C14—C15 | 1.401 (6) | O6—H62 | 0.82 (1) |
C14—H14A | 0.930 | O7—H71 | 0.82 (1) |
C15—N3 | 1.334 (7) | O7—H72 | 0.82 (1) |
C15—H15A | 0.930 | O8—H81 | 0.82 (1) |
C16—N3 | 1.340 (6) | O8—H82 | 0.82 (1) |
C16—C17 | 1.375 (6) | ||
O1—Mn1—O3 | 179.8 (2) | N3—C16—H16A | 117.5 |
O1—Mn1—O2 | 89.39 (13) | C17—C16—H16A | 117.5 |
O3—Mn1—O2 | 90.46 (15) | C16—C17—C13 | 118.9 (4) |
O1—Mn1—O4 | 90.98 (14) | C16—C17—H17A | 120.6 |
O3—Mn1—O4 | 89.17 (14) | C13—C17—H17A | 120.6 |
O2—Mn1—O4 | 178.88 (16) | N4—C18—C19 | 123.3 (4) |
O1—Mn1—N4 | 88.12 (13) | N4—C18—H18A | 118.4 |
O3—Mn1—N4 | 91.82 (12) | C19—C18—H18A | 118.4 |
O2—Mn1—N4 | 86.78 (14) | C18—C19—C20 | 119.5 (4) |
O4—Mn1—N4 | 92.18 (14) | C18—C19—H19A | 120.3 |
O1—Mn1—N2 | 91.49 (13) | C20—C19—H19A | 120.3 |
O3—Mn1—N2 | 88.57 (13) | C21—C20—C19 | 117.1 (4) |
O2—Mn1—N2 | 91.84 (14) | C21—C20—C23 | 120.9 (4) |
O4—Mn1—N2 | 89.20 (14) | C19—C20—C23 | 121.9 (4) |
N4—Mn1—N2 | 178.57 (17) | C22—C21—C20 | 119.4 (4) |
O10—C1—O9 | 124.6 (5) | C22—C21—H21A | 120.3 |
O10—C1—C2 | 118.3 (4) | C20—C21—H21A | 120.3 |
O9—C1—C2 | 117.1 (4) | N4—C22—C21 | 124.8 (5) |
C3—C2—N1 | 117.0 (6) | N4—C22—H22A | 117.6 |
C3—C2—C1 | 122.0 (6) | C21—C22—H22A | 117.6 |
N1—C2—C1 | 121.0 (3) | C27—C23—C24 | 116.1 (4) |
C2—C3—C4 | 120.9 (5) | C27—C23—C20 | 121.9 (4) |
C2—C3—H3A | 119.5 | C24—C23—C20 | 122.0 (4) |
C4—C3—H3A | 119.5 | C25—C24—C23 | 120.3 (5) |
C5—C4—C3 | 120.9 (4) | C25—C24—H24A | 119.9 |
C5—C4—H4A | 119.5 | C23—C24—H24A | 119.9 |
C3—C4—H4A | 119.5 | N5—C25—C24 | 123.6 (5) |
C4—C5—C6 | 120.3 (4) | N5—C25—H25A | 118.2 |
C4—C5—H5A | 119.9 | C24—C25—H25A | 118.2 |
C6—C5—H5A | 119.9 | N5—C26—C27 | 123.9 (5) |
C5—C6—N1 | 118.3 (4) | N5—C26—H26A | 118.1 |
C5—C6—C7 | 120.0 (4) | C27—C26—H26A | 118.1 |
N1—C6—C7 | 121.7 (3) | C26—C27—C23 | 119.8 (5) |
O12—C7—O11 | 125.0 (4) | C26—C27—H27A | 120.1 |
O12—C7—C6 | 116.8 (3) | C23—C27—H27A | 120.1 |
O11—C7—C6 | 118.2 (4) | C6—N1—C2 | 122.6 (4) |
N2—C8—C9 | 123.3 (4) | C12—N2—C8 | 116.6 (4) |
N2—C8—H8A | 118.4 | C12—N2—Mn1 | 123.7 (3) |
C9—C8—H8A | 118.4 | C8—N2—Mn1 | 118.8 (3) |
C8—C9—C10 | 120.9 (4) | C15—N3—C16 | 116.3 (4) |
C8—C9—H9A | 119.5 | C22—N4—C18 | 115.9 (4) |
C10—C9—H9A | 119.5 | C22—N4—Mn1 | 117.8 (3) |
C9—C10—C11 | 115.3 (4) | C18—N4—Mn1 | 125.1 (3) |
C9—C10—C13 | 122.7 (4) | C26—N5—C25 | 116.3 (4) |
C11—C10—C13 | 122.0 (4) | Mn1—O1—H11 | 132 (3) |
C12—C11—C10 | 120.0 (4) | Mn1—O1—H12 | 121 (3) |
C12—C11—H11A | 120.0 | H11—O1—H12 | 107 (2) |
C10—C11—H11A | 120.0 | Mn1—O2—H21 | 122 (3) |
N2—C12—C11 | 123.8 (4) | Mn1—O2—H22 | 127 (4) |
N2—C12—H12A | 118.1 | H21—O2—H22 | 107 (2) |
C11—C12—H12A | 118.1 | Mn1—O3—H31 | 130 (4) |
C14—C13—C17 | 116.9 (4) | Mn1—O3—H32 | 117 (3) |
C14—C13—C10 | 121.0 (4) | H31—O3—H32 | 109 (2) |
C17—C13—C10 | 122.0 (4) | Mn1—O4—H41 | 127 (3) |
C15—C14—C13 | 119.1 (4) | Mn1—O4—H42 | 124 (3) |
C15—C14—H14A | 120.5 | H41—O4—H42 | 103 (2) |
C13—C14—H14A | 120.5 | H51—O5—H52 | 107 (2) |
N3—C15—C14 | 123.8 (4) | H61—O6—H62 | 107 (2) |
N3—C15—H15A | 118.1 | H71—O7—H72 | 107 (2) |
C14—C15—H15A | 118.1 | H81—O8—H82 | 108 (2) |
N3—C16—C17 | 125.0 (5) | ||
O10—C1—C2—C3 | −179.0 (6) | C19—C20—C23—C24 | 176.6 (4) |
O9—C1—C2—C3 | −0.1 (10) | C27—C23—C24—C25 | 0.3 (7) |
O10—C1—C2—N1 | 2.4 (10) | C20—C23—C24—C25 | 179.4 (4) |
O9—C1—C2—N1 | −178.6 (5) | C23—C24—C25—N5 | −0.3 (8) |
N1—C2—C3—C4 | −0.5 (10) | N5—C26—C27—C23 | 0.4 (8) |
C1—C2—C3—C4 | −179.1 (5) | C24—C23—C27—C26 | −0.3 (7) |
C2—C3—C4—C5 | 0.6 (8) | C20—C23—C27—C26 | −179.4 (4) |
C3—C4—C5—C6 | −0.3 (7) | C5—C6—N1—C2 | 0.2 (8) |
C4—C5—C6—N1 | −0.1 (7) | C7—C6—N1—C2 | −177.1 (5) |
C4—C5—C6—C7 | 177.2 (4) | C3—C2—N1—C6 | 0.1 (10) |
C5—C6—C7—O12 | −177.5 (4) | C1—C2—N1—C6 | 178.7 (5) |
N1—C6—C7—O12 | −0.3 (6) | C11—C12—N2—C8 | −2.2 (7) |
C5—C6—C7—O11 | 0.4 (7) | C11—C12—N2—Mn1 | 167.2 (4) |
N1—C6—C7—O11 | 177.6 (4) | C9—C8—N2—C12 | 2.1 (7) |
N2—C8—C9—C10 | 1.1 (8) | C9—C8—N2—Mn1 | −167.9 (4) |
C8—C9—C10—C11 | −3.9 (7) | O1—Mn1—N2—C12 | 72.0 (4) |
C8—C9—C10—C13 | 175.5 (4) | O3—Mn1—N2—C12 | −108.2 (4) |
C9—C10—C11—C12 | 3.8 (7) | O2—Mn1—N2—C12 | 161.4 (4) |
C13—C10—C11—C12 | −175.7 (4) | O4—Mn1—N2—C12 | −19.0 (4) |
C10—C11—C12—N2 | −0.8 (8) | O1—Mn1—N2—C8 | −118.9 (4) |
C9—C10—C13—C14 | 5.2 (6) | O3—Mn1—N2—C8 | 61.0 (4) |
C11—C10—C13—C14 | −175.4 (4) | O2—Mn1—N2—C8 | −29.4 (4) |
C9—C10—C13—C17 | −174.6 (4) | O4—Mn1—N2—C8 | 150.2 (4) |
C11—C10—C13—C17 | 4.8 (6) | C14—C15—N3—C16 | 0.3 (6) |
C17—C13—C14—C15 | 0.3 (6) | C17—C16—N3—C15 | −0.7 (7) |
C10—C13—C14—C15 | −179.5 (4) | C21—C22—N4—C18 | −2.4 (7) |
C13—C14—C15—N3 | −0.2 (7) | C21—C22—N4—Mn1 | 165.7 (4) |
N3—C16—C17—C13 | 0.8 (7) | C19—C18—N4—C22 | 1.8 (6) |
C14—C13—C17—C16 | −0.6 (6) | C19—C18—N4—Mn1 | −165.4 (3) |
C10—C13—C17—C16 | 179.2 (4) | O1—Mn1—N4—C22 | −63.9 (3) |
N4—C18—C19—C20 | 0.7 (7) | O3—Mn1—N4—C22 | 116.2 (3) |
C18—C19—C20—C21 | −2.5 (6) | O2—Mn1—N4—C22 | −153.4 (3) |
C18—C19—C20—C23 | 176.0 (4) | O4—Mn1—N4—C22 | 27.0 (3) |
C19—C20—C21—C22 | 2.0 (6) | O1—Mn1—N4—C18 | 103.0 (3) |
C23—C20—C21—C22 | −176.6 (4) | O3—Mn1—N4—C18 | −76.8 (3) |
C20—C21—C22—N4 | 0.6 (7) | O2—Mn1—N4—C18 | 13.6 (3) |
C21—C20—C23—C27 | 174.2 (4) | O4—Mn1—N4—C18 | −166.0 (3) |
C19—C20—C23—C27 | −4.3 (6) | C27—C26—N5—C25 | −0.4 (8) |
C21—C20—C23—C24 | −4.9 (6) | C24—C25—N5—C26 | 0.4 (7) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H11···O8i | 0.82 (1) | 2.10 (3) | 2.848 (6) | 152 (6) |
O1—H12···N3ii | 0.82 (1) | 1.98 (2) | 2.787 (5) | 167 (6) |
O2—H21···O5iii | 0.82 (1) | 1.97 (1) | 2.781 (5) | 171 (5) |
O2—H22···O7iii | 0.82 (1) | 1.98 (1) | 2.799 (5) | 179 (7) |
O3—H31···O5iv | 0.82 (1) | 2.05 (1) | 2.864 (6) | 175 (6) |
O3—H32···N5v | 0.81 (1) | 1.96 (1) | 2.772 (5) | 177 (7) |
O4—H41···O8 | 0.83 (1) | 1.93 (1) | 2.760 (4) | 177 (5) |
O4—H42···O11vi | 0.82 (1) | 1.93 (1) | 2.751 (4) | 173 (5) |
O5—H52···O6 | 0.82 (1) | 1.96 (2) | 2.773 (7) | 169 (6) |
O5—H51···O11vi | 0.82 (1) | 1.97 (2) | 2.770 (6) | 165 (6) |
O6—H62···O9 | 0.82 (1) | 2.41 (7) | 2.933 (6) | 123 (7) |
O6—H61···O10i | 0.82 (1) | 2.01 (2) | 2.821 (5) | 169 (7) |
O7—H72···O5vii | 0.82 (1) | 2.56 (2) | 3.330 (6) | 158 (5) |
O7—H71···O9 | 0.82 (1) | 1.84 (2) | 2.645 (5) | 168 (6) |
O8—H81···O7 | 0.82 (1) | 2.04 (2) | 2.844 (6) | 166 (6) |
O8—H82···O12viii | 0.82 (1) | 1.98 (1) | 2.787 (5) | 172 (6) |
Symmetry codes: (i) x, y+1, z; (ii) x, −y+2, z−1/2; (iii) x+1/2, y+1/2, z; (iv) x+1/2, y−1/2, z; (v) x, −y+1, z+1/2; (vi) x, −y+1, z−1/2; (vii) x, y−1, z; (viii) x, −y, z−1/2. |
Experimental details
Crystal data | |
Chemical formula | [Mn(C10H8N2)2(H2O)4](C7H3NO4)·4H2O |
Mr | 676.54 |
Crystal system, space group | Monoclinic, Cc |
Temperature (K) | 293 |
a, b, c (Å) | 18.407 (2), 6.8231 (10), 25.2925 (10) |
β (°) | 99.40 (2) |
V (Å3) | 3133.9 (6) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.49 |
Crystal size (mm) | 0.15 × 0.15 × 0.15 |
Data collection | |
Diffractometer | Bruker APEX II CCD |
Absorption correction | Multi-scan (SADABS; Bruker, 2001) |
Tmin, Tmax | 0.930, 0.930 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 5104, 3349, 2946 |
Rint | 0.018 |
(sin θ/λ)max (Å−1) | 0.599 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.033, 0.091, 1.05 |
No. of reflections | 3349 |
No. of parameters | 455 |
No. of restraints | 26 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.33, −0.25 |
Absolute structure | Flack (1983), 530 Friedel pairs |
Absolute structure parameter | 0.39 (3) |
Computer programs: APEX2 (Bruker, 2004), SAINT-Plus (Bruker, 2001), SAINT-Plus, SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), SHELXTL (Bruker, 2001), SHELXTL.
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H11···O8i | 0.82 (1) | 2.10 (3) | 2.848 (6) | 152 (6) |
O1—H12···N3ii | 0.82 (1) | 1.98 (2) | 2.787 (5) | 167 (6) |
O2—H21···O5iii | 0.82 (1) | 1.97 (1) | 2.781 (5) | 171 (5) |
O2—H22···O7iii | 0.82 (1) | 1.98 (1) | 2.799 (5) | 179 (7) |
O3—H31···O5iv | 0.82 (1) | 2.05 (1) | 2.864 (6) | 175 (6) |
O3—H32···N5v | 0.81 (1) | 1.96 (1) | 2.772 (5) | 177 (7) |
O4—H41···O8 | 0.83 (1) | 1.93 (1) | 2.760 (4) | 177 (5) |
O4—H42···O11vi | 0.82 (1) | 1.93 (1) | 2.751 (4) | 173 (5) |
O5—H52···O6 | 0.82 (1) | 1.96 (2) | 2.773 (7) | 169 (6) |
O5—H51···O11vi | 0.82 (1) | 1.97 (2) | 2.770 (6) | 165 (6) |
O6—H62···O9 | 0.82 (1) | 2.41 (7) | 2.933 (6) | 123 (7) |
O6—H61···O10i | 0.82 (1) | 2.01 (2) | 2.821 (5) | 169 (7) |
O7—H72···O5vii | 0.82 (1) | 2.56 (2) | 3.330 (6) | 158 (5) |
O7—H71···O9 | 0.82 (1) | 1.84 (2) | 2.645 (5) | 168 (6) |
O8—H81···O7 | 0.82 (1) | 2.04 (2) | 2.844 (6) | 166 (6) |
O8—H82···O12viii | 0.82 (1) | 1.98 (1) | 2.787 (5) | 172 (6) |
Symmetry codes: (i) x, y+1, z; (ii) x, −y+2, z−1/2; (iii) x+1/2, y+1/2, z; (iv) x+1/2, y−1/2, z; (v) x, −y+1, z+1/2; (vi) x, −y+1, z−1/2; (vii) x, y−1, z; (viii) x, −y, z−1/2. |
The title compound is isostructural with its FeII analogue (Gao et al., 2007). In the [Mn(C10H8N2)2(H2O)4]2+ cations, MnII is hexacoordinated in an octahedral manner by four water molecules in the equatorial plane and two N atoms in the axial positions from two 4,4'-bipyridine molecules (Figure 1). The Mn—N and Mn—O bond lengths are in the range 2.284 (4)–2.291 (4) and 2.144 (3)–2.222 (3) Å, respectively. The cations lie in layers in the bc planes. Pyridine-2,6-dicarboxylate anions and water molecules lie between these layers, forming an extensive hydrogen-bond network (Figure 2).