supplementary materials
Hemipiperazinediium bis(pyridine-2,6-dicarboxylato-
3O,N,O')gallate(III) pyridine-2,6-dicarboxylic acid dihydrate
The asymmetric unit of the title compound, (C4H12N2)0.5[Ga(pydc)2]·pydcH2·2H2O, where pydcH2 is pyridine-2,6-dicarboxylic acid, C7H5NO4, contains one half of a centrosymmetric piperazinediium dication, one anion, one uncoordinated pydcH2 molecule and two uncoordinated water molecules, one of which is disordered over two sites in a 1:1 ratio. In the anion, the GaIII ion is coordinated by four O atoms [Ga-O = 1.9706 (16)-2.0494 (15) Å] and two N atoms [Ga-N = 1.9660 (18) and 1.9709 (17) Å] from two pydc ligands in a distorted octahedral geometry. The crystal structure exhibits intermolecular O-H
O, N-H
O and O-H
N hydrogen bonds and
-
interactions [centroid-centroid distances of 3.5359 (13) and 3.6550 (14) Å].
The proton transfer compound (pipzH2)(pydcH)2.3H2O, was prepared by the
reaction of pyridine-2,6-dicarboxylic acid, pydcH2, with piperazine, pipz,
(Sheshmani et al., 2006). The reaction between
Ga(NO3)3.8H2O
(200.0 mg, 0.5 mmol) in water (25 ml) and the proton transfer compound
(pipzH2 )(pydcH)2.3H2O (253.0 mg, 1.0 mmol) in water (25 ml), in a 1:2
molar ratio was carried by slow evaporation of the solvent at room
temperature.
The H atoms of the –OH and –NH2 groups as well as the water molecule were
located in the difference Fourier map and refined in rigid model with fixed
thermal (Uiso(H) = 1.2Ueq(O or N) for the –OH and –NH2 groups and
Uiso(H) = 1.5Ueq(O) for the water molecule) parameters. The H(C)
atoms were placed in calculated positions and refined in riding model with
fixed thermal parameters (Uiso(H) = 1.2Ueq(C)). The Ueq(O, N
or C) are the equivalent thermal parameters of the oxygen, nitrogen and carbon
atoms, respectively, to which corresponding H atoms are bonded. One water
molecule (O14) was refined as disordered between two positions with the
occupancies fixed to 0.5 each.
Data collection: SMART (Bruker, 1998); cell refinement: SAINT-Plus (Bruker, 1998); data reduction: SAINT-Plus(Bruker, 1998); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).
Hemipiperazinediium
bis(pyridine-2,6-dicarboxylato-
κ3O,
N,
O')gallate(III)
pyridine-2,6-dicarboxylic acid dihydrate
top
Crystal data top
| (C4H12N2)0.5[Ga(C7H3NO4)2]·C7H5NO4·2H2O | Z = 2 |
| Mr = 647.16 | F(000) = 660 |
| Triclinic, P1 | Dx = 1.694 Mg m−3 |
| Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
| a = 8.6434 (4) Å | Cell parameters from 6643 reflections |
| b = 11.8582 (5) Å | θ = 2.4–29.9° |
| c = 13.7907 (6) Å | µ = 1.17 mm−1 |
| α = 65.7151 (10)° | T = 120 K |
| β = 80.0391 (10)° | Prism, colourless |
| γ = 86.9150 (11)° | 0.25 × 0.20 × 0.18 mm |
| V = 1268.74 (10) Å3 | |
Data collection top
Bruker SMART 1000 CCD area-detector diffractometer | 6067 independent reflections |
| Radiation source: fine-focus sealed tube | 5263 reflections with I > 2σ(I) |
| graphite | Rint = 0.024 |
| φ and ω scans | θmax = 28.0°, θmin = 1.6° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1998a) | h = −11→11 |
| Tmin = 0.749, Tmax = 0.807 | k = −15→15 |
| 13018 measured reflections | l = −18→18 |
Refinement top
| 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)] = 0.039 | Hydrogen site location: mixed |
| wR(F2) = 0.099 | H-atom parameters constrained |
| S = 1.00 | w = 1/[σ2(Fo2) + (0.043P)2 + 2.120P] where P = (Fo2 + 2Fc2)/3 |
| 6067 reflections | (Δ/σ)max = 0.001 |
| 382 parameters | Δρmax = 0.86 e Å−3 |
| 0 restraints | Δρmin = −0.84 e Å−3 |
Crystal data top
| (C4H12N2)0.5[Ga(C7H3NO4)2]·C7H5NO4·2H2O | γ = 86.9150 (11)° |
| Mr = 647.16 | V = 1268.74 (10) Å3 |
| Triclinic, P1 | Z = 2 |
| a = 8.6434 (4) Å | Mo Kα radiation |
| b = 11.8582 (5) Å | µ = 1.17 mm−1 |
| c = 13.7907 (6) Å | T = 120 K |
| α = 65.7151 (10)° | 0.25 × 0.20 × 0.18 mm |
| β = 80.0391 (10)° | |
Data collection top
Bruker SMART 1000 CCD area-detector diffractometer | 6067 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1998a) | 5263 reflections with I > 2σ(I) |
| Tmin = 0.749, Tmax = 0.807 | Rint = 0.024 |
| 13018 measured reflections | θmax = 28.0° |
Refinement top
| R[F2 > 2σ(F2)] = 0.039 | H-atom parameters constrained |
| wR(F2) = 0.099 | Δρmax = 0.86 e Å−3 |
| S = 1.00 | Δρmin = −0.84 e Å−3 |
| 6067 reflections | Absolute structure: ? |
| 382 parameters | Flack parameter: ? |
| 0 restraints | Rogers parameter: ? |
Special details top
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. |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2) top| | x | y | z | Uiso*/Ueq | Occ. (<1) |
| Ga1 | 0.69834 (3) | 0.81449 (2) | 0.236980 (18) | 0.01489 (8) | |
| O1 | 0.49972 (19) | 0.87108 (15) | 0.30323 (13) | 0.0197 (3) | |
| O2 | 0.3151 (2) | 0.80985 (17) | 0.45133 (15) | 0.0282 (4) | |
| O3 | 0.89040 (18) | 0.71384 (14) | 0.22836 (12) | 0.0172 (3) | |
| O4 | 1.00566 (19) | 0.53668 (15) | 0.31985 (13) | 0.0221 (3) | |
| O5 | 0.82240 (19) | 0.95577 (14) | 0.22476 (13) | 0.0196 (3) | |
| O6 | 0.9372 (2) | 1.13613 (15) | 0.10526 (14) | 0.0247 (4) | |
| O7 | 0.56973 (18) | 0.71043 (14) | 0.19088 (12) | 0.0175 (3) | |
| O8 | 0.49004 (19) | 0.70052 (14) | 0.04916 (13) | 0.0197 (3) | |
| N1 | 0.6764 (2) | 0.69072 (16) | 0.38696 (14) | 0.0149 (3) | |
| N2 | 0.7106 (2) | 0.91756 (16) | 0.08145 (14) | 0.0136 (3) | |
| C1 | 0.5515 (3) | 0.6960 (2) | 0.45659 (17) | 0.0167 (4) | |
| C2 | 0.5309 (3) | 0.6093 (2) | 0.56250 (18) | 0.0210 (4) | |
| H2A | 0.4444 | 0.6131 | 0.6139 | 0.025* | |
| C3 | 0.6416 (3) | 0.5158 (2) | 0.59122 (18) | 0.0219 (5) | |
| H3A | 0.6310 | 0.4555 | 0.6635 | 0.026* | |
| C4 | 0.7666 (3) | 0.5101 (2) | 0.51542 (17) | 0.0192 (4) | |
| H4A | 0.8400 | 0.4452 | 0.5342 | 0.023* | |
| C5 | 0.7816 (3) | 0.60203 (19) | 0.41114 (17) | 0.0156 (4) | |
| C6 | 0.4444 (3) | 0.8002 (2) | 0.40167 (18) | 0.0191 (4) | |
| C7 | 0.9052 (3) | 0.6166 (2) | 0.31338 (17) | 0.0166 (4) | |
| C8 | 0.7917 (2) | 1.02317 (19) | 0.04205 (17) | 0.0153 (4) | |
| C9 | 0.8099 (3) | 1.0982 (2) | −0.06768 (18) | 0.0186 (4) | |
| H9A | 0.8670 | 1.1745 | −0.0976 | 0.022* | |
| C10 | 0.7412 (3) | 1.0574 (2) | −0.13246 (18) | 0.0203 (4) | |
| H10A | 0.7516 | 1.1069 | −0.2077 | 0.024* | |
| C11 | 0.6578 (3) | 0.9454 (2) | −0.08861 (17) | 0.0174 (4) | |
| H11A | 0.6120 | 0.9174 | −0.1328 | 0.021* | |
| C12 | 0.6438 (2) | 0.87575 (19) | 0.02216 (17) | 0.0147 (4) | |
| C13 | 0.8575 (3) | 1.0439 (2) | 0.12937 (18) | 0.0172 (4) | |
| C14 | 0.5601 (2) | 0.75183 (19) | 0.09115 (17) | 0.0151 (4) | |
| O9 | 0.58636 (19) | 0.23498 (15) | 0.14907 (13) | 0.0210 (3) | |
| H9O | 0.5960 | 0.2683 | 0.0773 | 0.025* | |
| O10 | 0.6888 (2) | 0.25644 (16) | 0.27682 (13) | 0.0254 (4) | |
| O11 | 0.6148 (2) | 0.53088 (15) | −0.19160 (13) | 0.0217 (3) | |
| H11O | 0.6047 | 0.4592 | −0.1367 | 0.026* | |
| O12 | 0.7671 (2) | 0.69899 (16) | −0.25682 (14) | 0.0280 (4) | |
| N3 | 0.7038 (2) | 0.45536 (16) | 0.00267 (14) | 0.0157 (3) | |
| C15 | 0.7399 (2) | 0.4193 (2) | 0.10158 (17) | 0.0167 (4) | |
| C16 | 0.8334 (3) | 0.4892 (2) | 0.12957 (18) | 0.0195 (4) | |
| H16A | 0.8564 | 0.4600 | 0.2007 | 0.023* | |
| C17 | 0.8921 (3) | 0.6026 (2) | 0.05116 (19) | 0.0207 (4) | |
| H17A | 0.9560 | 0.6529 | 0.0676 | 0.025* | |
| C18 | 0.8560 (3) | 0.6413 (2) | −0.05174 (19) | 0.0192 (4) | |
| H18A | 0.8950 | 0.7184 | −0.1072 | 0.023* | |
| C19 | 0.7612 (2) | 0.56477 (19) | −0.07202 (17) | 0.0158 (4) | |
| C20 | 0.6712 (3) | 0.2969 (2) | 0.18329 (18) | 0.0182 (4) | |
| C21 | 0.7167 (3) | 0.6045 (2) | −0.18171 (18) | 0.0191 (4) | |
| N4 | 0.1327 (2) | 0.08293 (17) | 0.44706 (15) | 0.0178 (4) | |
| H4B | 0.0905 | 0.1566 | 0.4452 | 0.021* | |
| H4C | 0.2365 | 0.0977 | 0.4152 | 0.021* | |
| C22 | 0.1227 (3) | −0.0079 (2) | 0.56174 (17) | 0.0183 (4) | |
| H22A | 0.1770 | 0.0268 | 0.6012 | 0.022* | |
| H22B | 0.1760 | −0.0849 | 0.5644 | 0.022* | |
| C23 | 0.0474 (3) | 0.0373 (2) | 0.38454 (17) | 0.0193 (4) | |
| H23A | 0.0981 | −0.0380 | 0.3808 | 0.023* | |
| H23B | 0.0525 | 0.1012 | 0.3100 | 0.023* | |
| O13 | 0.9874 (2) | 0.28616 (16) | 0.46782 (16) | 0.0303 (4) | |
| H13A | 0.9995 | 0.3653 | 0.4063 | 0.045* | |
| H13B | 0.8844 | 0.2583 | 0.4939 | 0.045* | |
| O14 | 0.4588 (4) | 0.0692 (4) | 0.3846 (3) | 0.0273 (6) | 0.50 |
| H14B | 0.4838 | 0.0384 | 0.3297 | 0.041* | 0.50 |
| O14' | 0.4459 (4) | 0.0981 (4) | 0.4270 (3) | 0.0273 (6) | 0.50 |
| H14C | 0.4715 | 0.0321 | 0.4851 | 0.041* | 0.50 |
| H14A | 0.5272 | 0.1322 | 0.3704 | 0.041* | |
Atomic displacement parameters (Å2) top| | U11 | U22 | U33 | U12 | U13 | U23 |
| Ga1 | 0.01791 (13) | 0.01363 (12) | 0.01235 (12) | −0.00172 (8) | −0.00268 (8) | −0.00423 (9) |
| O1 | 0.0207 (8) | 0.0183 (7) | 0.0188 (8) | 0.0022 (6) | −0.0022 (6) | −0.0070 (6) |
| O2 | 0.0233 (9) | 0.0275 (9) | 0.0299 (9) | 0.0030 (7) | 0.0045 (7) | −0.0114 (8) |
| O3 | 0.0182 (7) | 0.0171 (7) | 0.0150 (7) | −0.0004 (6) | −0.0020 (6) | −0.0055 (6) |
| O4 | 0.0207 (8) | 0.0224 (8) | 0.0225 (8) | 0.0047 (6) | −0.0045 (6) | −0.0085 (7) |
| O5 | 0.0254 (8) | 0.0175 (7) | 0.0172 (7) | −0.0038 (6) | −0.0056 (6) | −0.0070 (6) |
| O6 | 0.0277 (9) | 0.0187 (8) | 0.0281 (9) | −0.0082 (7) | −0.0054 (7) | −0.0086 (7) |
| O7 | 0.0219 (8) | 0.0161 (7) | 0.0135 (7) | −0.0050 (6) | −0.0041 (6) | −0.0039 (6) |
| O8 | 0.0232 (8) | 0.0178 (7) | 0.0201 (8) | −0.0044 (6) | −0.0056 (6) | −0.0082 (6) |
| N1 | 0.0157 (8) | 0.0153 (8) | 0.0133 (8) | −0.0020 (7) | −0.0018 (6) | −0.0055 (7) |
| N2 | 0.0136 (8) | 0.0127 (8) | 0.0129 (8) | 0.0003 (6) | −0.0021 (6) | −0.0038 (6) |
| C1 | 0.0176 (10) | 0.0184 (10) | 0.0163 (10) | −0.0015 (8) | 0.0001 (8) | −0.0101 (8) |
| C2 | 0.0266 (12) | 0.0225 (11) | 0.0154 (10) | −0.0037 (9) | 0.0018 (8) | −0.0107 (9) |
| C3 | 0.0341 (13) | 0.0176 (10) | 0.0129 (10) | −0.0028 (9) | −0.0041 (9) | −0.0045 (8) |
| C4 | 0.0255 (11) | 0.0163 (10) | 0.0162 (10) | −0.0006 (8) | −0.0071 (8) | −0.0054 (8) |
| C5 | 0.0182 (10) | 0.0137 (9) | 0.0159 (10) | −0.0016 (8) | −0.0046 (8) | −0.0062 (8) |
| C6 | 0.0204 (11) | 0.0180 (10) | 0.0211 (10) | −0.0006 (8) | −0.0024 (8) | −0.0105 (8) |
| C7 | 0.0178 (10) | 0.0176 (10) | 0.0162 (10) | −0.0011 (8) | −0.0056 (8) | −0.0076 (8) |
| C8 | 0.0147 (9) | 0.0128 (9) | 0.0178 (10) | −0.0013 (7) | −0.0021 (8) | −0.0057 (8) |
| C9 | 0.0180 (10) | 0.0146 (10) | 0.0201 (10) | −0.0020 (8) | −0.0024 (8) | −0.0038 (8) |
| C10 | 0.0207 (11) | 0.0210 (11) | 0.0144 (10) | −0.0006 (8) | −0.0011 (8) | −0.0030 (8) |
| C11 | 0.0183 (10) | 0.0191 (10) | 0.0150 (10) | 0.0008 (8) | −0.0046 (8) | −0.0065 (8) |
| C12 | 0.0135 (9) | 0.0149 (9) | 0.0169 (10) | 0.0006 (7) | −0.0030 (7) | −0.0075 (8) |
| C13 | 0.0170 (10) | 0.0155 (10) | 0.0183 (10) | −0.0007 (8) | −0.0035 (8) | −0.0059 (8) |
| C14 | 0.0138 (9) | 0.0151 (9) | 0.0163 (9) | −0.0001 (7) | −0.0024 (7) | −0.0064 (8) |
| O9 | 0.0271 (8) | 0.0175 (7) | 0.0158 (7) | −0.0077 (6) | −0.0034 (6) | −0.0032 (6) |
| O10 | 0.0305 (9) | 0.0269 (9) | 0.0154 (8) | −0.0071 (7) | −0.0040 (7) | −0.0043 (7) |
| O11 | 0.0283 (9) | 0.0197 (8) | 0.0155 (7) | −0.0052 (6) | −0.0070 (6) | −0.0035 (6) |
| O12 | 0.0339 (10) | 0.0209 (8) | 0.0213 (8) | −0.0081 (7) | −0.0045 (7) | 0.0002 (7) |
| N3 | 0.0173 (9) | 0.0148 (8) | 0.0161 (8) | −0.0028 (7) | −0.0026 (7) | −0.0071 (7) |
| C15 | 0.0166 (10) | 0.0190 (10) | 0.0145 (9) | 0.0000 (8) | −0.0007 (8) | −0.0075 (8) |
| C16 | 0.0188 (10) | 0.0245 (11) | 0.0185 (10) | −0.0008 (8) | −0.0023 (8) | −0.0121 (9) |
| C17 | 0.0190 (10) | 0.0236 (11) | 0.0256 (11) | −0.0048 (8) | −0.0006 (9) | −0.0168 (9) |
| C18 | 0.0181 (10) | 0.0154 (10) | 0.0240 (11) | −0.0032 (8) | 0.0007 (8) | −0.0093 (9) |
| C19 | 0.0167 (10) | 0.0143 (9) | 0.0161 (9) | −0.0012 (8) | −0.0006 (8) | −0.0064 (8) |
| C20 | 0.0164 (10) | 0.0198 (10) | 0.0175 (10) | −0.0018 (8) | −0.0020 (8) | −0.0069 (8) |
| C21 | 0.0189 (10) | 0.0182 (10) | 0.0187 (10) | −0.0024 (8) | −0.0015 (8) | −0.0061 (8) |
| N4 | 0.0179 (9) | 0.0150 (8) | 0.0186 (9) | −0.0022 (7) | −0.0011 (7) | −0.0054 (7) |
| C22 | 0.0209 (11) | 0.0168 (10) | 0.0169 (10) | 0.0004 (8) | −0.0057 (8) | −0.0057 (8) |
| C23 | 0.0239 (11) | 0.0184 (10) | 0.0148 (10) | −0.0005 (8) | −0.0023 (8) | −0.0061 (8) |
| O13 | 0.0278 (9) | 0.0159 (8) | 0.0394 (10) | −0.0010 (7) | 0.0036 (8) | −0.0069 (7) |
| O14 | 0.0209 (11) | 0.0258 (15) | 0.0248 (18) | −0.0049 (10) | −0.0007 (13) | −0.0006 (11) |
| O14' | 0.0209 (11) | 0.0258 (15) | 0.0248 (18) | −0.0049 (10) | −0.0007 (13) | −0.0006 (11) |
Geometric parameters (Å, °) top
| Ga1—N1 | 1.9660 (18) | C12—C14 | 1.521 (3) |
| Ga1—O5 | 1.9706 (16) | O9—C20 | 1.328 (3) |
| Ga1—N2 | 1.9709 (17) | O9—H9O | 0.8922 |
| Ga1—O3 | 2.0073 (16) | O10—C20 | 1.212 (3) |
| Ga1—O1 | 2.0175 (16) | O11—C21 | 1.334 (3) |
| Ga1—O7 | 2.0494 (15) | O11—H11O | 0.8710 |
| O1—C6 | 1.288 (3) | O12—C21 | 1.208 (3) |
| O2—C6 | 1.232 (3) | N3—C19 | 1.336 (3) |
| O3—C7 | 1.282 (3) | N3—C15 | 1.340 (3) |
| O4—C7 | 1.236 (3) | C15—C16 | 1.390 (3) |
| O5—C13 | 1.296 (3) | C15—C20 | 1.498 (3) |
| O6—C13 | 1.218 (3) | C16—C17 | 1.387 (3) |
| O7—C14 | 1.272 (3) | C16—H16A | 0.9500 |
| O8—C14 | 1.234 (3) | C17—C18 | 1.387 (3) |
| N1—C5 | 1.326 (3) | C17—H17A | 0.9500 |
| N1—C1 | 1.332 (3) | C18—C19 | 1.393 (3) |
| N2—C8 | 1.326 (3) | C18—H18A | 0.9500 |
| N2—C12 | 1.333 (3) | C19—C21 | 1.501 (3) |
| C1—C2 | 1.385 (3) | N4—C23 | 1.492 (3) |
| C1—C6 | 1.519 (3) | N4—C22 | 1.493 (3) |
| C2—C3 | 1.399 (3) | N4—H4B | 0.9200 |
| C2—H2A | 0.9500 | N4—H4C | 0.9200 |
| C3—C4 | 1.387 (3) | C22—C23i | 1.516 (3) |
| C3—H3A | 0.9500 | C22—H22A | 0.9900 |
| C4—C5 | 1.391 (3) | C22—H22B | 0.9900 |
| C4—H4A | 0.9500 | C23—C22i | 1.516 (3) |
| C5—C7 | 1.523 (3) | C23—H23A | 0.9900 |
| C8—C9 | 1.390 (3) | C23—H23B | 0.9900 |
| C8—C13 | 1.526 (3) | O13—H13A | 0.9680 |
| C9—C10 | 1.398 (3) | O13—H13B | 0.9241 |
| C9—H9A | 0.9500 | O14—H14B | 0.9561 |
| C10—C11 | 1.393 (3) | O14—H14A | 0.9136 |
| C10—H10A | 0.9500 | O14'—H14C | 0.9120 |
| C11—C12 | 1.393 (3) | O14'—H14A | 0.9201 |
| C11—H11A | 0.9500 | | |
| | | |
| Cg1···Cg1ii | 3.5359 (13) | Cg2···Cg2iii | 3.6550 (14) |
| | | |
| N1—Ga1—O5 | 108.00 (7) | C10—C11—H11A | 121.1 |
| N1—Ga1—N2 | 171.11 (7) | N2—C12—C11 | 119.35 (19) |
| O5—Ga1—N2 | 80.53 (7) | N2—C12—C14 | 111.43 (18) |
| N1—Ga1—O3 | 79.40 (7) | C11—C12—C14 | 129.22 (19) |
| O5—Ga1—O3 | 92.73 (7) | O6—C13—O5 | 126.4 (2) |
| N2—Ga1—O3 | 98.00 (7) | O6—C13—C8 | 119.7 (2) |
| N1—Ga1—O1 | 79.32 (7) | O5—C13—C8 | 113.88 (18) |
| O5—Ga1—O1 | 92.66 (7) | O8—C14—O7 | 125.60 (19) |
| N2—Ga1—O1 | 103.22 (7) | O8—C14—C12 | 119.95 (19) |
| O3—Ga1—O1 | 158.69 (6) | O7—C14—C12 | 114.45 (18) |
| N1—Ga1—O7 | 93.34 (7) | C20—O9—H9O | 111.7 |
| O5—Ga1—O7 | 158.65 (6) | C21—O11—H11O | 111.4 |
| N2—Ga1—O7 | 78.18 (7) | C19—N3—C15 | 117.42 (18) |
| O3—Ga1—O7 | 91.71 (6) | N3—C15—C16 | 123.5 (2) |
| O1—Ga1—O7 | 90.73 (7) | N3—C15—C20 | 115.68 (19) |
| C6—O1—Ga1 | 115.97 (14) | C16—C15—C20 | 120.8 (2) |
| C7—O3—Ga1 | 116.61 (14) | C17—C16—C15 | 118.4 (2) |
| C13—O5—Ga1 | 116.85 (14) | C17—C16—H16A | 120.8 |
| C14—O7—Ga1 | 116.91 (13) | C15—C16—H16A | 120.8 |
| C5—N1—C1 | 123.75 (19) | C16—C17—C18 | 118.9 (2) |
| C5—N1—Ga1 | 117.85 (14) | C16—C17—H17A | 120.6 |
| C1—N1—Ga1 | 118.25 (15) | C18—C17—H17A | 120.6 |
| C8—N2—C12 | 124.25 (18) | C17—C18—C19 | 118.6 (2) |
| C8—N2—Ga1 | 116.74 (14) | C17—C18—H18A | 120.7 |
| C12—N2—Ga1 | 118.95 (14) | C19—C18—H18A | 120.7 |
| N1—C1—C2 | 119.9 (2) | N3—C19—C18 | 123.2 (2) |
| N1—C1—C6 | 111.16 (18) | N3—C19—C21 | 116.56 (19) |
| C2—C1—C6 | 128.9 (2) | C18—C19—C21 | 120.18 (19) |
| C1—C2—C3 | 117.7 (2) | O10—C20—O9 | 120.9 (2) |
| C1—C2—H2A | 121.1 | O10—C20—C15 | 122.2 (2) |
| C3—C2—H2A | 121.1 | O9—C20—C15 | 116.82 (19) |
| C4—C3—C2 | 120.8 (2) | O12—C21—O11 | 121.3 (2) |
| C4—C3—H3A | 119.6 | O12—C21—C19 | 122.4 (2) |
| C2—C3—H3A | 119.6 | O11—C21—C19 | 116.24 (19) |
| C3—C4—C5 | 118.2 (2) | C23—N4—C22 | 111.88 (16) |
| C3—C4—H4A | 120.9 | C23—N4—H4B | 109.2 |
| C5—C4—H4A | 120.9 | C22—N4—H4B | 109.2 |
| N1—C5—C4 | 119.5 (2) | C23—N4—H4C | 109.2 |
| N1—C5—C7 | 111.65 (18) | C22—N4—H4C | 109.2 |
| C4—C5—C7 | 128.8 (2) | H4B—N4—H4C | 107.9 |
| O2—C6—O1 | 125.6 (2) | N4—C22—C23i | 110.48 (17) |
| O2—C6—C1 | 119.7 (2) | N4—C22—H22A | 109.6 |
| O1—C6—C1 | 114.70 (19) | C23i—C22—H22A | 109.6 |
| O4—C7—O3 | 125.8 (2) | N4—C22—H22B | 109.6 |
| O4—C7—C5 | 120.05 (19) | C23i—C22—H22B | 109.6 |
| O3—C7—C5 | 114.15 (18) | H22A—C22—H22B | 108.1 |
| N2—C8—C9 | 119.8 (2) | N4—C23—C22i | 109.99 (18) |
| N2—C8—C13 | 111.98 (18) | N4—C23—H23A | 109.7 |
| C9—C8—C13 | 128.25 (19) | C22i—C23—H23A | 109.7 |
| C8—C9—C10 | 117.6 (2) | N4—C23—H23B | 109.7 |
| C8—C9—H9A | 121.2 | C22i—C23—H23B | 109.7 |
| C10—C9—H9A | 121.2 | H23A—C23—H23B | 108.2 |
| C11—C10—C9 | 121.2 (2) | H13A—O13—H13B | 114.1 |
| C11—C10—H10A | 119.4 | H14B—O14—H14C | 137.1 |
| C9—C10—H10A | 119.4 | H14B—O14—H14A | 109.3 |
| C12—C11—C10 | 117.8 (2) | H14C—O14—H14A | 87.3 |
| C12—C11—H11A | 121.1 | H14C—O14'—H14A | 115.4 |
| | | |
| N1—Ga1—O1—C6 | −6.27 (15) | N1—C1—C6—O1 | −6.8 (3) |
| O5—Ga1—O1—C6 | −114.09 (16) | C2—C1—C6—O1 | 176.0 (2) |
| N2—Ga1—O1—C6 | 165.03 (15) | Ga1—O3—C7—O4 | 171.78 (17) |
| O3—Ga1—O1—C6 | −9.6 (3) | Ga1—O3—C7—C5 | −6.4 (2) |
| O7—Ga1—O1—C6 | 87.00 (16) | N1—C5—C7—O4 | −174.74 (19) |
| N1—Ga1—O3—C7 | 5.46 (15) | C4—C5—C7—O4 | 3.7 (3) |
| O5—Ga1—O3—C7 | 113.27 (15) | N1—C5—C7—O3 | 3.5 (3) |
| N2—Ga1—O3—C7 | −165.92 (15) | C4—C5—C7—O3 | −178.0 (2) |
| O1—Ga1—O3—C7 | 8.8 (3) | C12—N2—C8—C9 | 0.5 (3) |
| O7—Ga1—O3—C7 | −87.62 (15) | Ga1—N2—C8—C9 | 177.69 (16) |
| N1—Ga1—O5—C13 | 175.84 (15) | C12—N2—C8—C13 | −178.39 (18) |
| N2—Ga1—O5—C13 | −1.56 (16) | Ga1—N2—C8—C13 | −1.2 (2) |
| O3—Ga1—O5—C13 | 96.10 (16) | N2—C8—C9—C10 | −0.4 (3) |
| O1—Ga1—O5—C13 | −104.53 (16) | C13—C8—C9—C10 | 178.3 (2) |
| O7—Ga1—O5—C13 | −5.7 (3) | C8—C9—C10—C11 | −0.1 (3) |
| N1—Ga1—O7—C14 | −174.98 (16) | C9—C10—C11—C12 | 0.6 (3) |
| O5—Ga1—O7—C14 | 6.5 (3) | C8—N2—C12—C11 | 0.0 (3) |
| N2—Ga1—O7—C14 | 2.31 (15) | Ga1—N2—C12—C11 | −177.16 (15) |
| O3—Ga1—O7—C14 | −95.50 (15) | C8—N2—C12—C14 | 179.72 (18) |
| O1—Ga1—O7—C14 | 105.67 (15) | Ga1—N2—C12—C14 | 2.6 (2) |
| O5—Ga1—N1—C5 | −92.75 (16) | C10—C11—C12—N2 | −0.5 (3) |
| O3—Ga1—N1—C5 | −3.32 (15) | C10—C11—C12—C14 | 179.8 (2) |
| O1—Ga1—N1—C5 | 177.91 (16) | Ga1—O5—C13—O6 | −177.41 (19) |
| O7—Ga1—N1—C5 | 87.80 (16) | Ga1—O5—C13—C8 | 1.3 (2) |
| O5—Ga1—N1—C1 | 91.47 (16) | N2—C8—C13—O6 | 178.7 (2) |
| O3—Ga1—N1—C1 | −179.09 (17) | C9—C8—C13—O6 | 0.0 (4) |
| O1—Ga1—N1—C1 | 2.14 (15) | N2—C8—C13—O5 | −0.1 (3) |
| O7—Ga1—N1—C1 | −87.97 (16) | C9—C8—C13—O5 | −178.9 (2) |
| O5—Ga1—N2—C8 | 1.50 (15) | Ga1—O7—C14—O8 | 178.77 (17) |
| O3—Ga1—N2—C8 | −89.95 (16) | Ga1—O7—C14—C12 | −1.6 (2) |
| O1—Ga1—N2—C8 | 92.02 (16) | N2—C12—C14—O8 | 179.09 (19) |
| O7—Ga1—N2—C8 | 179.97 (16) | C11—C12—C14—O8 | −1.2 (3) |
| O5—Ga1—N2—C12 | 178.85 (16) | N2—C12—C14—O7 | −0.6 (3) |
| O3—Ga1—N2—C12 | 87.40 (16) | C11—C12—C14—O7 | 179.2 (2) |
| O1—Ga1—N2—C12 | −90.63 (16) | C19—N3—C15—C16 | −0.2 (3) |
| O7—Ga1—N2—C12 | −2.69 (15) | C19—N3—C15—C20 | 179.14 (19) |
| C5—N1—C1—C2 | 3.5 (3) | N3—C15—C16—C17 | 0.2 (3) |
| Ga1—N1—C1—C2 | 179.03 (16) | C20—C15—C16—C17 | −179.1 (2) |
| C5—N1—C1—C6 | −173.91 (19) | C15—C16—C17—C18 | −0.3 (3) |
| Ga1—N1—C1—C6 | 1.6 (2) | C16—C17—C18—C19 | 0.3 (3) |
| N1—C1—C2—C3 | −2.1 (3) | C15—N3—C19—C18 | 0.2 (3) |
| C6—C1—C2—C3 | 174.9 (2) | C15—N3—C19—C21 | −178.88 (19) |
| C1—C2—C3—C4 | −0.7 (3) | C17—C18—C19—N3 | −0.3 (3) |
| C2—C3—C4—C5 | 2.1 (3) | C17—C18—C19—C21 | 178.8 (2) |
| C1—N1—C5—C4 | −2.1 (3) | N3—C15—C20—O10 | −176.5 (2) |
| Ga1—N1—C5—C4 | −177.58 (15) | C16—C15—C20—O10 | 2.9 (3) |
| C1—N1—C5—C7 | 176.57 (19) | N3—C15—C20—O9 | 2.1 (3) |
| Ga1—N1—C5—C7 | 1.0 (2) | C16—C15—C20—O9 | −178.5 (2) |
| C3—C4—C5—N1 | −0.8 (3) | N3—C19—C21—O12 | −176.7 (2) |
| C3—C4—C5—C7 | −179.1 (2) | C18—C19—C21—O12 | 4.1 (3) |
| Ga1—O1—C6—O2 | −170.02 (19) | N3—C19—C21—O11 | 4.8 (3) |
| Ga1—O1—C6—C1 | 8.8 (2) | C18—C19—C21—O11 | −174.3 (2) |
| N1—C1—C6—O2 | 172.1 (2) | C23—N4—C22—C23i | −57.1 (3) |
| C2—C1—C6—O2 | −5.1 (4) | C22—N4—C23—C22i | 56.8 (2) |
| Symmetry codes: (i) −x, −y, −z+1; (ii) −x+2, −y+1, −z; (iii) −x+1, −y+1, −z+1. |
Hydrogen-bond geometry (Å, °) top
| D—H···A | D—H | H···A | D···A | D—H···A |
| N4—H4B···O13iv | 0.92 | 1.84 | 2.754 (3) | 169 |
| N4—H4C···O14 | 0.92 | 1.94 | 2.818 (4) | 160 |
| N4—H4C···O14' | 0.92 | 1.85 | 2.681 (4) | 150 |
| O9—H9O···O8v | 0.89 | 1.90 | 2.710 (2) | 150 |
| O11—H11O···O8v | 0.87 | 1.91 | 2.725 (2) | 155 |
| O13—H13A···O4 | 0.97 | 1.88 | 2.823 (3) | 163 |
| O13—H13B···O2iii | 0.92 | 1.84 | 2.765 (3) | 175 |
| O14—H14A···O10 | 0.91 | 1.95 | 2.798 (5) | 153 |
| O14—H14B···O1vi | 0.96 | 2.15 | 2.974 (5) | 143 |
| O14'—H14C···O14vii | 0.91 | 1.89 | 2.774 (6) | 164 |
| N4—H4C···O12v | 0.92 | 2.50 | 2.863 (3) | 104 |
| O9—H9O···N3 | 0.89 | 2.20 | 2.678 (3) | 113 |
| O11—H11O···N3 | 0.87 | 2.22 | 2.690 (2) | 114 |
| C3—H3A···O11viii | 0.95 | 2.48 | 3.042 (3) | 117 |
| C9—H9A···O3ix | 0.95 | 2.54 | 3.341 (3) | 143 |
| C17—H17A···O3 | 0.95 | 2.57 | 3.217 (3) | 126 |
| C18—H18A···O6ix | 0.95 | 2.32 | 3.026 (3) | 130 |
| C22—H22A···O5iii | 0.99 | 2.49 | 3.360 (3) | 146 |
| C22—H22B···O2vi | 0.99 | 2.50 | 3.346 (3) | 144 |
| C23—H23A···O2vi | 0.99 | 2.56 | 3.391 (3) | 142 |
| Symmetry codes: (iv) x−1, y, z; (v) −x+1, −y+1, −z; (iii) −x+1, −y+1, −z+1; (vi) x, y−1, z; (vii) −x+1, −y, −z+1; (viii) x, y, z+1; (ix) −x+2, −y+2, −z. |
Table 1
Hydrogen-bond geometry (Å, °) top
| D—H···A | D—H | H···A | D···A | D—H···A |
| N4—H4B···O13i | 0.92 | 1.84 | 2.754 (3) | 169 |
| N4—H4C···O14 | 0.92 | 1.94 | 2.818 (4) | 160 |
| N4—H4C···O14' | 0.92 | 1.85 | 2.681 (4) | 150 |
| O9—H9O···O8ii | 0.89 | 1.90 | 2.710 (2) | 150 |
| O11—H11O···O8ii | 0.87 | 1.91 | 2.725 (2) | 155 |
| O13—H13A···O4 | 0.97 | 1.88 | 2.823 (3) | 163 |
| O13—H13B···O2iii | 0.92 | 1.84 | 2.765 (3) | 175 |
| O14—H14A···O10 | 0.91 | 1.95 | 2.798 (5) | 153 |
| O14—H14B···O1iv | 0.96 | 2.15 | 2.974 (5) | 143 |
| N4—H4C···O12ii | 0.92 | 2.50 | 2.863 (3) | 104 |
| O9—H9O···N3 | 0.89 | 2.20 | 2.678 (3) | 113 |
| O11—H11O···N3 | 0.87 | 2.22 | 2.690 (2) | 114 |
| Symmetry codes: (i) x−1, y, z; (ii) −x+1, −y+1, −z; (iii) −x+1, −y+1, −z+1; (iv) x, y−1, z. |
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In continuation of our study of self-assembling systems (pipzH2)32+[In(pydc)3]23-.12H2O, (pipzH2)2+[Tl2(pydc)2Cl4(H2O)2]2-.4H2O and some others (Aghabozorg et al., 2006a,b), we present here the crystal structure of the title compound, (I).
In (I) (Fig. 1), all bond lengths and angles are normal and correspond to those observed in the related complexes of pyridine-2,6-dicarboxylate ligand with transition metals (Rafizadeh et al., 2005; Rafizadeh, Mehrabi & Amani, 2006; Rafizadeh & Amani, 2006; Aghabozorg et al., 2007, 2008). In the anion, the angles O1—Ga—O3 [158.69 (6)°], O5—Ga—O7 [158.65 (6)°] and N1—Ga—N2 [171.11 (7)°] indicate that the coordination environment around GaIII ion is a distorted octahedron.
In the crystal, the π–π interactions (Table 1) and extensive three-dimensional network of intermolecular O—H···O, O—H···N and N—H···O hydrogen bonds (Table 2) contribute to the crystal packing stability.