metal-organic compounds
Poly[(μ3-4-carboxypyridine-3-carboxylato-κ3N:O3:O4)(triphenylphosphine-κP)silver(I)]
aDepartment of Chemistry, General Campus, Shahid Beheshti University, Tehran 1983963113, Iran, and bDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
*Correspondence e-mail: seikweng@um.edu.my
In the title 1:1 silver(I) 4-carboxypyridine-3-carboxylate adduct with triphenylphosphine, [Ag(C7H4NO4)(C18H15P)]n, the carboxylate anion bridges the phosphine-coordinated Ag atoms through its N and O atoms, generating a coordination polymer forming layers in the bc plane. The Ag atom exists in a distorted tetrahedral geometry. The H atom of the carboxylate is midway between two O atoms of the two carboxyl groups, thus forming a strong intramolecular hydrogen bond.
Related literature
For the synthesis of the silver reactant used in the synthesis, see: Hanna & Ng (1999); Ng & Othman (1997). For a related structure, see: Drew et al. (1971).
Experimental
Crystal data
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Data collection: APEX2 (Bruker, 2009); cell SAINT (Bruker, 2009); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: X-SEED (Barbour, 2001); software used to prepare material for publication: publCIF (Westrip, 2010).
Supporting information
https://doi.org/10.1107/S1600536810033350/bt5322sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810033350/bt5322Isup2.hkl
Silver acetate (1 mmol, 0.17 g) and triphenylphosphine (2 mmol, 0.53 g) were heated in ethanol (50 ml) until the reactants dissolved completely. Gray insoluble material was removed by filtration and the solvent removed to yield bis(silver acetate.2triphenylphosphine) monohydrate sesquiethanol (Hanna & Ng, 1999; Ng & Othman, 1997).
The adduct (0.5 mmol, 0.69 g) and 3,4-pyridinedicarboxylic acid (1 mmol, 0.17 g) were placed in a convection tube; the tube was filled with a 1:1 methanol/ethanol mixture and kept at 333 K. Colorless crystals were collected after 3 days (m.p. > 550 K).
Hydrogen atoms bonded to C were placed in calculated positions (C–H 0.95 Å) and were included in the
in the riding model approximation, with U(H) set to 1.2Ueq(C). The carboxylic H-atom was freely refined.We have used bis(silver acetate.2triphenylphosphine) monohydrate sesquiethanol (Hanna & Ng, 1999; Ng & Othman, 1997) as a template in the synthesis of triphenylphosphine adducts of other silver carboxylates; the silver carboxylates themselves cannot be synthesized directly by the reaction of a silver salt with the carboxylate anion as the reaction invariably leads to the formation of some insoluble gray material.
The
of the silver(II) derivative of the monobasic 3-carboxypyridyl-4-carboxylate anion was reported a long time ago (Drew et al., 1971); the silver atom is N,O-chelated by two anions in an approximate square-planar enviroment.The silver(I) 3-carboxypyridyl-4-carboxylate–triphenylphosphine adduct (Scheme I) exists as a polymeric compound (Fig. 1) in which the anion bridges adjacent silver atoms through one carboxyl group and the pyridyl N atom (Fig. 2). The diffraction measurements are of a sufficiently high quality for the acid H atom to be refined; the
places this atom mid-way between the O atoms of the two carboxyl O atoms, at a distance of 1.20 (4) Å. The O···H···O interaction is an intramolecular hydrogen bond. The pyridyl ring and the carboxyl –CO2 unit that is engaged in Ag coordination enclose a dihedral angle of 14.3 (2) ° whereas the free carboxyl group encloses a dihedral angle of 15.2 (3) ° with the pyridyl ring; such minimal twist probably locks the acid H atom in its place.For the synthesis of the silver reactant used in the synthesis, see: Hanna & Ng (1999); Ng & Othman (1997). For a related structure, see: Drew et al. (1971).
Data collection: APEX2 (Bruker, 2009); cell
SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: X-SEED (Barbour, 2001); software used to prepare material for publication: publCIF (Westrip, 2010).[Ag(C7H4NO4)(C18H15P)] | F(000) = 1080 |
Mr = 536.25 | Dx = 1.653 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 9293 reflections |
a = 14.2472 (7) Å | θ = 2.4–28.3° |
b = 10.2431 (5) Å | µ = 1.04 mm−1 |
c = 16.3146 (8) Å | T = 100 K |
β = 115.206 (1)° | Block, colorless |
V = 2154.18 (18) Å3 | 0.35 × 0.30 × 0.15 mm |
Z = 4 |
Bruker SMART APEX diffractometer | 4942 independent reflections |
Radiation source: fine-focus sealed tube | 4587 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.019 |
ω scans | θmax = 27.5°, θmin = 1.6° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −18→18 |
Tmin = 0.712, Tmax = 0.859 | k = −10→13 |
13432 measured reflections | l = −21→20 |
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)] = 0.020 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.055 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0292P)2 + 1.0816P] where P = (Fo2 + 2Fc2)/3 |
4942 reflections | (Δ/σ)max = 0.001 |
293 parameters | Δρmax = 0.43 e Å−3 |
0 restraints | Δρmin = −0.48 e Å−3 |
[Ag(C7H4NO4)(C18H15P)] | V = 2154.18 (18) Å3 |
Mr = 536.25 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 14.2472 (7) Å | µ = 1.04 mm−1 |
b = 10.2431 (5) Å | T = 100 K |
c = 16.3146 (8) Å | 0.35 × 0.30 × 0.15 mm |
β = 115.206 (1)° |
Bruker SMART APEX diffractometer | 4942 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 4587 reflections with I > 2σ(I) |
Tmin = 0.712, Tmax = 0.859 | Rint = 0.019 |
13432 measured reflections |
R[F2 > 2σ(F2)] = 0.020 | 0 restraints |
wR(F2) = 0.055 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | Δρmax = 0.43 e Å−3 |
4942 reflections | Δρmin = −0.48 e Å−3 |
293 parameters |
x | y | z | Uiso*/Ueq | ||
Ag1 | 0.618798 (9) | 0.207715 (12) | 0.474714 (8) | 0.01345 (5) | |
P1 | 0.76750 (3) | 0.10818 (4) | 0.47440 (3) | 0.01115 (8) | |
O1 | 0.62846 (9) | 0.44669 (12) | 0.47885 (7) | 0.0165 (2) | |
O2 | 0.69543 (9) | 0.48204 (12) | 0.38079 (8) | 0.0166 (2) | |
O3 | 0.53857 (9) | 0.75596 (13) | 0.16600 (8) | 0.0193 (2) | |
O4 | 0.66107 (9) | 0.61847 (12) | 0.25149 (8) | 0.0178 (2) | |
H4 | 0.679 (3) | 0.554 (4) | 0.318 (2) | 0.095 (12)* | |
N1 | 0.46880 (10) | 0.77905 (13) | 0.43864 (10) | 0.0148 (3) | |
C1 | 0.78294 (12) | −0.06194 (15) | 0.50936 (10) | 0.0127 (3) | |
C2 | 0.73968 (12) | −0.10399 (16) | 0.56721 (11) | 0.0146 (3) | |
H2 | 0.6994 | −0.0453 | 0.5842 | 0.018* | |
C3 | 0.75513 (13) | −0.23085 (17) | 0.60006 (11) | 0.0160 (3) | |
H3 | 0.7260 | −0.2587 | 0.6398 | 0.019* | |
C4 | 0.81319 (13) | −0.31702 (16) | 0.57480 (11) | 0.0158 (3) | |
H4A | 0.8246 | −0.4036 | 0.5979 | 0.019* | |
C5 | 0.85461 (14) | −0.27720 (17) | 0.51589 (12) | 0.0175 (3) | |
H5 | 0.8930 | −0.3372 | 0.4977 | 0.021* | |
C6 | 0.84020 (13) | −0.14963 (17) | 0.48331 (11) | 0.0166 (3) | |
H6 | 0.8693 | −0.1223 | 0.4434 | 0.020* | |
C7 | 0.77577 (12) | 0.10772 (15) | 0.36598 (10) | 0.0122 (3) | |
C8 | 0.69787 (12) | 0.04132 (16) | 0.29445 (11) | 0.0159 (3) | |
H8 | 0.6462 | −0.0053 | 0.3047 | 0.019* | |
C9 | 0.69546 (13) | 0.04295 (17) | 0.20850 (11) | 0.0176 (3) | |
H9 | 0.6430 | −0.0036 | 0.1604 | 0.021* | |
C10 | 0.76977 (13) | 0.11260 (17) | 0.19307 (11) | 0.0189 (3) | |
H10 | 0.7670 | 0.1157 | 0.1339 | 0.023* | |
C11 | 0.84788 (14) | 0.17757 (18) | 0.26345 (12) | 0.0211 (4) | |
H11 | 0.8992 | 0.2241 | 0.2527 | 0.025* | |
C12 | 0.85148 (13) | 0.17507 (17) | 0.35027 (11) | 0.0173 (3) | |
H12 | 0.9055 | 0.2193 | 0.3986 | 0.021* | |
C13 | 0.88689 (12) | 0.18607 (16) | 0.55374 (11) | 0.0132 (3) | |
C14 | 0.89652 (13) | 0.32173 (17) | 0.54761 (11) | 0.0155 (3) | |
H14 | 0.8419 | 0.3704 | 0.5029 | 0.019* | |
C15 | 0.98636 (13) | 0.38491 (17) | 0.60728 (11) | 0.0185 (3) | |
H15 | 0.9934 | 0.4765 | 0.6024 | 0.022* | |
C16 | 1.06569 (13) | 0.31447 (18) | 0.67385 (12) | 0.0191 (3) | |
H16 | 1.1267 | 0.3578 | 0.7145 | 0.023* | |
C17 | 1.05556 (13) | 0.18084 (18) | 0.68081 (11) | 0.0186 (3) | |
H17 | 1.1096 | 0.1328 | 0.7266 | 0.022* | |
C18 | 0.96635 (12) | 0.11650 (17) | 0.62095 (11) | 0.0158 (3) | |
H18 | 0.9598 | 0.0249 | 0.6261 | 0.019* | |
C19 | 0.63603 (11) | 0.51340 (15) | 0.41887 (10) | 0.0127 (3) | |
C20 | 0.57237 (11) | 0.63798 (15) | 0.39057 (10) | 0.0119 (3) | |
C21 | 0.52976 (12) | 0.67522 (16) | 0.44994 (11) | 0.0130 (3) | |
H21 | 0.5453 | 0.6228 | 0.5022 | 0.016* | |
C22 | 0.44636 (13) | 0.85140 (18) | 0.36360 (12) | 0.0191 (3) | |
H22 | 0.4028 | 0.9256 | 0.3536 | 0.023* | |
C23 | 0.48410 (13) | 0.82197 (17) | 0.30104 (12) | 0.0177 (3) | |
H23 | 0.4657 | 0.8755 | 0.2489 | 0.021* | |
C24 | 0.54897 (12) | 0.71481 (15) | 0.31276 (11) | 0.0124 (3) | |
C25 | 0.58450 (12) | 0.69438 (16) | 0.23706 (11) | 0.0140 (3) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Ag1 | 0.01300 (7) | 0.01372 (7) | 0.01545 (7) | 0.00322 (4) | 0.00782 (5) | 0.00133 (4) |
P1 | 0.01137 (17) | 0.01234 (19) | 0.01010 (18) | 0.00181 (14) | 0.00492 (15) | 0.00062 (14) |
O1 | 0.0218 (6) | 0.0127 (6) | 0.0151 (6) | 0.0016 (4) | 0.0081 (5) | 0.0017 (4) |
O2 | 0.0175 (5) | 0.0186 (6) | 0.0147 (5) | 0.0052 (5) | 0.0077 (5) | 0.0007 (5) |
O3 | 0.0168 (6) | 0.0290 (7) | 0.0106 (5) | −0.0030 (5) | 0.0043 (5) | 0.0032 (5) |
O4 | 0.0212 (6) | 0.0192 (6) | 0.0168 (6) | 0.0025 (5) | 0.0118 (5) | 0.0012 (5) |
N1 | 0.0136 (6) | 0.0163 (7) | 0.0156 (7) | 0.0025 (5) | 0.0074 (5) | 0.0031 (5) |
C1 | 0.0123 (7) | 0.0135 (7) | 0.0110 (7) | 0.0007 (6) | 0.0037 (6) | 0.0004 (6) |
C2 | 0.0143 (7) | 0.0170 (8) | 0.0134 (7) | 0.0018 (6) | 0.0067 (6) | −0.0013 (6) |
C3 | 0.0154 (7) | 0.0197 (8) | 0.0124 (7) | −0.0016 (6) | 0.0056 (6) | 0.0011 (6) |
C4 | 0.0160 (7) | 0.0136 (8) | 0.0139 (7) | −0.0004 (6) | 0.0026 (6) | 0.0007 (6) |
C5 | 0.0184 (8) | 0.0162 (8) | 0.0188 (8) | 0.0035 (6) | 0.0088 (7) | −0.0010 (6) |
C6 | 0.0182 (8) | 0.0166 (8) | 0.0175 (8) | 0.0024 (6) | 0.0101 (7) | 0.0019 (6) |
C7 | 0.0133 (7) | 0.0138 (8) | 0.0103 (7) | 0.0041 (6) | 0.0057 (6) | 0.0021 (6) |
C8 | 0.0131 (7) | 0.0181 (8) | 0.0155 (8) | 0.0009 (6) | 0.0053 (6) | 0.0005 (6) |
C9 | 0.0172 (7) | 0.0191 (8) | 0.0123 (7) | 0.0038 (6) | 0.0023 (6) | −0.0025 (6) |
C10 | 0.0262 (8) | 0.0205 (9) | 0.0119 (7) | 0.0066 (7) | 0.0097 (7) | 0.0016 (6) |
C11 | 0.0255 (9) | 0.0229 (9) | 0.0202 (9) | −0.0037 (7) | 0.0148 (7) | −0.0001 (7) |
C12 | 0.0178 (8) | 0.0188 (8) | 0.0153 (8) | −0.0036 (6) | 0.0070 (6) | −0.0026 (6) |
C13 | 0.0127 (7) | 0.0176 (8) | 0.0101 (7) | 0.0018 (6) | 0.0056 (6) | −0.0011 (6) |
C14 | 0.0152 (7) | 0.0158 (8) | 0.0141 (7) | 0.0027 (6) | 0.0047 (6) | 0.0004 (6) |
C15 | 0.0186 (8) | 0.0180 (8) | 0.0188 (8) | −0.0004 (6) | 0.0078 (7) | −0.0018 (7) |
C16 | 0.0158 (8) | 0.0246 (9) | 0.0146 (8) | −0.0008 (7) | 0.0041 (6) | −0.0043 (7) |
C17 | 0.0161 (8) | 0.0245 (9) | 0.0128 (8) | 0.0057 (7) | 0.0037 (6) | 0.0006 (6) |
C18 | 0.0161 (7) | 0.0177 (8) | 0.0139 (7) | 0.0044 (6) | 0.0066 (6) | 0.0011 (6) |
C19 | 0.0109 (7) | 0.0133 (8) | 0.0098 (7) | −0.0009 (6) | 0.0007 (6) | −0.0026 (6) |
C20 | 0.0092 (6) | 0.0132 (7) | 0.0114 (7) | −0.0010 (6) | 0.0027 (6) | −0.0005 (6) |
C21 | 0.0117 (7) | 0.0143 (7) | 0.0119 (7) | −0.0008 (6) | 0.0041 (6) | 0.0016 (6) |
C22 | 0.0178 (8) | 0.0194 (9) | 0.0227 (8) | 0.0071 (7) | 0.0113 (7) | 0.0076 (7) |
C23 | 0.0161 (8) | 0.0213 (9) | 0.0165 (8) | 0.0038 (6) | 0.0078 (6) | 0.0083 (7) |
C24 | 0.0098 (7) | 0.0156 (8) | 0.0108 (7) | −0.0023 (6) | 0.0035 (6) | −0.0005 (6) |
C25 | 0.0133 (7) | 0.0179 (8) | 0.0110 (7) | −0.0063 (6) | 0.0054 (6) | −0.0031 (6) |
Ag1—P1 | 2.3531 (4) | C8—C9 | 1.388 (2) |
Ag1—O1 | 2.451 (1) | C8—H8 | 0.9500 |
Ag1—O3i | 2.481 (1) | C9—C10 | 1.386 (2) |
Ag1—N1ii | 2.253 (1) | C9—H9 | 0.9500 |
P1—C1 | 1.8175 (16) | C10—C11 | 1.383 (3) |
P1—C7 | 1.8222 (15) | C10—H10 | 0.9500 |
P1—C13 | 1.8248 (17) | C11—C12 | 1.396 (2) |
O1—C19 | 1.2353 (19) | C11—H11 | 0.9500 |
O2—C19 | 1.2858 (18) | C12—H12 | 0.9500 |
O3—C25 | 1.235 (2) | C13—C18 | 1.391 (2) |
O3—Ag1iii | 2.4814 (12) | C13—C14 | 1.404 (2) |
O4—C25 | 1.277 (2) | C14—C15 | 1.394 (2) |
O4—H4 | 1.20 (4) | C14—H14 | 0.9500 |
N1—C21 | 1.335 (2) | C15—C16 | 1.390 (2) |
N1—C22 | 1.348 (2) | C15—H15 | 0.9500 |
N1—Ag1ii | 2.2531 (13) | C16—C17 | 1.386 (2) |
C1—C6 | 1.396 (2) | C16—H16 | 0.9500 |
C1—C2 | 1.397 (2) | C17—C18 | 1.395 (2) |
C2—C3 | 1.387 (2) | C17—H17 | 0.9500 |
C2—H2 | 0.9500 | C18—H18 | 0.9500 |
C3—C4 | 1.387 (2) | C19—C20 | 1.519 (2) |
C3—H3 | 0.9500 | C20—C21 | 1.397 (2) |
C4—C5 | 1.386 (2) | C20—C24 | 1.408 (2) |
C4—H4A | 0.9500 | C21—H21 | 0.9500 |
C5—C6 | 1.392 (2) | C22—C23 | 1.374 (2) |
C5—H5 | 0.9500 | C22—H22 | 0.9500 |
C6—H6 | 0.9500 | C23—C24 | 1.395 (2) |
C7—C12 | 1.393 (2) | C23—H23 | 0.9500 |
C7—C8 | 1.398 (2) | C24—C25 | 1.536 (2) |
P1—Ag1—O1 | 113.12 (3) | C9—C10—H10 | 119.9 |
P1—Ag1—O3i | 122.95 (3) | C10—C11—C12 | 120.18 (16) |
P1—Ag1—N1ii | 140.10 (4) | C10—C11—H11 | 119.9 |
O1—Ag1—O3i | 81.06 (4) | C12—C11—H11 | 119.9 |
O1—Ag1—N1ii | 87.84 (4) | C7—C12—C11 | 119.94 (16) |
O3i—Ag1—N1ii | 92.57 (4) | C7—C12—H12 | 120.0 |
C1—P1—C7 | 104.65 (7) | C11—C12—H12 | 120.0 |
C1—P1—C13 | 104.18 (7) | C18—C13—C14 | 119.46 (15) |
C7—P1—C13 | 105.28 (7) | C18—C13—P1 | 122.35 (13) |
C1—P1—Ag1 | 113.79 (5) | C14—C13—P1 | 118.16 (12) |
C7—P1—Ag1 | 115.70 (5) | C15—C14—C13 | 119.88 (15) |
C13—P1—Ag1 | 112.16 (5) | C15—C14—H14 | 120.1 |
C19—O1—Ag1 | 123.60 (10) | C13—C14—H14 | 120.1 |
C25—O3—Ag1iii | 132.51 (11) | C16—C15—C14 | 120.26 (16) |
C25—O4—H4 | 110.1 (17) | C16—C15—H15 | 119.9 |
C21—N1—C22 | 116.87 (14) | C14—C15—H15 | 119.9 |
C21—N1—Ag1ii | 117.57 (10) | C17—C16—C15 | 119.88 (16) |
C22—N1—Ag1ii | 123.80 (11) | C17—C16—H16 | 120.1 |
C6—C1—C2 | 119.38 (15) | C15—C16—H16 | 120.1 |
C6—C1—P1 | 121.99 (12) | C16—C17—C18 | 120.31 (16) |
C2—C1—P1 | 118.58 (12) | C16—C17—H17 | 119.8 |
C3—C2—C1 | 120.45 (14) | C18—C17—H17 | 119.8 |
C3—C2—H2 | 119.8 | C13—C18—C17 | 120.19 (16) |
C1—C2—H2 | 119.8 | C13—C18—H18 | 119.9 |
C2—C3—C4 | 119.87 (15) | C17—C18—H18 | 119.9 |
C2—C3—H3 | 120.1 | O1—C19—O2 | 122.82 (15) |
C4—C3—H3 | 120.1 | O1—C19—C20 | 117.60 (13) |
C5—C4—C3 | 120.17 (16) | O2—C19—C20 | 119.58 (14) |
C5—C4—H4A | 119.9 | C21—C20—C24 | 117.80 (14) |
C3—C4—H4A | 119.9 | C21—C20—C19 | 113.46 (13) |
C4—C5—C6 | 120.25 (15) | C24—C20—C19 | 128.70 (14) |
C4—C5—H5 | 119.9 | N1—C21—C20 | 124.81 (14) |
C6—C5—H5 | 119.9 | N1—C21—H21 | 117.6 |
C5—C6—C1 | 119.86 (15) | C20—C21—H21 | 117.6 |
C5—C6—H6 | 120.1 | N1—C22—C23 | 122.51 (15) |
C1—C6—H6 | 120.1 | N1—C22—H22 | 118.7 |
C12—C7—C8 | 119.29 (14) | C23—C22—H22 | 118.7 |
C12—C7—P1 | 123.54 (12) | C22—C23—C24 | 121.11 (15) |
C8—C7—P1 | 117.08 (11) | C22—C23—H23 | 119.4 |
C9—C8—C7 | 120.46 (15) | C24—C23—H23 | 119.4 |
C9—C8—H8 | 119.8 | C23—C24—C20 | 116.89 (14) |
C7—C8—H8 | 119.8 | C23—C24—C25 | 115.03 (14) |
C10—C9—C8 | 119.84 (15) | C20—C24—C25 | 128.06 (14) |
C10—C9—H9 | 120.1 | O3—C25—O4 | 123.62 (15) |
C8—C9—H9 | 120.1 | O3—C25—C24 | 117.47 (14) |
C11—C10—C9 | 120.26 (15) | O4—C25—C24 | 118.88 (14) |
C11—C10—H10 | 119.9 | ||
N1ii—Ag1—P1—C1 | 43.84 (8) | C1—P1—C13—C18 | 1.57 (15) |
O1—Ag1—P1—C1 | 160.37 (6) | C7—P1—C13—C18 | −108.28 (14) |
O3i—Ag1—P1—C1 | −105.31 (7) | Ag1—P1—C13—C18 | 125.08 (12) |
N1ii—Ag1—P1—C7 | 165.10 (8) | C1—P1—C13—C14 | −176.52 (12) |
O1—Ag1—P1—C7 | −78.37 (7) | C7—P1—C13—C14 | 73.64 (14) |
O3i—Ag1—P1—C7 | 15.96 (7) | Ag1—P1—C13—C14 | −53.00 (13) |
N1ii—Ag1—P1—C13 | −74.11 (8) | C18—C13—C14—C15 | 1.6 (2) |
O1—Ag1—P1—C13 | 42.42 (6) | P1—C13—C14—C15 | 179.71 (12) |
O3i—Ag1—P1—C13 | 136.75 (7) | C13—C14—C15—C16 | −1.1 (2) |
N1ii—Ag1—O1—C19 | −153.23 (12) | C14—C15—C16—C17 | 0.1 (3) |
P1—Ag1—O1—C19 | 61.82 (12) | C15—C16—C17—C18 | 0.4 (3) |
O3i—Ag1—O1—C19 | −60.29 (12) | C14—C13—C18—C17 | −1.0 (2) |
C7—P1—C1—C6 | 28.81 (15) | P1—C13—C18—C17 | −179.09 (12) |
C13—P1—C1—C6 | −81.49 (14) | C16—C17—C18—C13 | 0.1 (2) |
Ag1—P1—C1—C6 | 156.05 (12) | Ag1—O1—C19—O2 | −41.8 (2) |
C7—P1—C1—C2 | −153.99 (12) | Ag1—O1—C19—C20 | 138.75 (11) |
C13—P1—C1—C2 | 95.70 (13) | O1—C19—C20—C21 | 12.9 (2) |
Ag1—P1—C1—C2 | −26.75 (14) | O2—C19—C20—C21 | −166.63 (14) |
C6—C1—C2—C3 | 1.3 (2) | O1—C19—C20—C24 | −164.64 (15) |
P1—C1—C2—C3 | −175.96 (12) | O2—C19—C20—C24 | 15.9 (2) |
C1—C2—C3—C4 | −0.5 (2) | C22—N1—C21—C20 | 0.8 (2) |
C2—C3—C4—C5 | −0.9 (2) | Ag1ii—N1—C21—C20 | 166.32 (12) |
C3—C4—C5—C6 | 1.5 (3) | C24—C20—C21—N1 | −0.4 (2) |
C4—C5—C6—C1 | −0.7 (3) | C19—C20—C21—N1 | −178.22 (14) |
C2—C1—C6—C5 | −0.7 (2) | C21—N1—C22—C23 | −0.4 (3) |
P1—C1—C6—C5 | 176.45 (13) | Ag1ii—N1—C22—C23 | −164.87 (13) |
C1—P1—C7—C12 | −119.18 (14) | N1—C22—C23—C24 | −0.5 (3) |
C13—P1—C7—C12 | −9.67 (16) | C22—C23—C24—C20 | 0.9 (2) |
Ag1—P1—C7—C12 | 114.76 (13) | C22—C23—C24—C25 | 179.83 (15) |
C1—P1—C7—C8 | 64.36 (13) | C21—C20—C24—C23 | −0.4 (2) |
C13—P1—C7—C8 | 173.86 (12) | C19—C20—C24—C23 | 176.96 (15) |
Ag1—P1—C7—C8 | −61.70 (13) | C21—C20—C24—C25 | −179.24 (14) |
C12—C7—C8—C9 | −0.4 (2) | C19—C20—C24—C25 | −1.8 (3) |
P1—C7—C8—C9 | 176.25 (12) | Ag1iii—O3—C25—O4 | 93.68 (18) |
C7—C8—C9—C10 | −1.0 (2) | Ag1iii—O3—C25—C24 | −88.43 (17) |
C8—C9—C10—C11 | 1.7 (3) | C23—C24—C25—O3 | −13.6 (2) |
C9—C10—C11—C12 | −1.0 (3) | C20—C24—C25—O3 | 165.22 (15) |
C8—C7—C12—C11 | 1.1 (2) | C23—C24—C25—O4 | 164.40 (15) |
P1—C7—C12—C11 | −175.27 (13) | C20—C24—C25—O4 | −16.8 (2) |
C10—C11—C12—C7 | −0.5 (3) |
Symmetry codes: (i) −x+1, y−1/2, −z+1/2; (ii) −x+1, −y+1, −z+1; (iii) −x+1, y+1/2, −z+1/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
O4—H4···O2 | 1.20 (4) | 1.20 (4) | 2.401 (2) | 176 (4) |
Experimental details
Crystal data | |
Chemical formula | [Ag(C7H4NO4)(C18H15P)] |
Mr | 536.25 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 100 |
a, b, c (Å) | 14.2472 (7), 10.2431 (5), 16.3146 (8) |
β (°) | 115.206 (1) |
V (Å3) | 2154.18 (18) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 1.04 |
Crystal size (mm) | 0.35 × 0.30 × 0.15 |
Data collection | |
Diffractometer | Bruker SMART APEX diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.712, 0.859 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 13432, 4942, 4587 |
Rint | 0.019 |
(sin θ/λ)max (Å−1) | 0.650 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.020, 0.055, 1.05 |
No. of reflections | 4942 |
No. of parameters | 293 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.43, −0.48 |
Computer programs: APEX2 (Bruker, 2009), SAINT (Bruker, 2009), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), X-SEED (Barbour, 2001), publCIF (Westrip, 2010).
Acknowledgements
We thank Shahid Beheshti University and the University of Malaya for supporting this study.
References
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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.
We have used bis(silver acetate.2triphenylphosphine) monohydrate sesquiethanol (Hanna & Ng, 1999; Ng & Othman, 1997) as a template in the synthesis of triphenylphosphine adducts of other silver carboxylates; the silver carboxylates themselves cannot be synthesized directly by the reaction of a silver salt with the carboxylate anion as the reaction invariably leads to the formation of some insoluble gray material.
The crystal structure of the silver(II) derivative of the monobasic 3-carboxypyridyl-4-carboxylate anion was reported a long time ago (Drew et al., 1971); the silver atom is N,O-chelated by two anions in an approximate square-planar enviroment.
The silver(I) 3-carboxypyridyl-4-carboxylate–triphenylphosphine adduct (Scheme I) exists as a polymeric compound (Fig. 1) in which the anion bridges adjacent silver atoms through one carboxyl group and the pyridyl N atom (Fig. 2). The diffraction measurements are of a sufficiently high quality for the acid H atom to be refined; the refinement places this atom mid-way between the O atoms of the two carboxyl O atoms, at a distance of 1.20 (4) Å. The O···H···O interaction is an intramolecular hydrogen bond. The pyridyl ring and the carboxyl –CO2 unit that is engaged in Ag coordination enclose a dihedral angle of 14.3 (2) ° whereas the free carboxyl group encloses a dihedral angle of 15.2 (3) ° with the pyridyl ring; such minimal twist probably locks the acid H atom in its place.