metal-organic compounds
Bis{tris[2-(2-oxidobenzylideneazaniumyl)ethyl]amine-κ3O,O′,O′′}calcium bis(perchlorate) acetonitrile disolvate
aChemistry Department, Loughborough University, Leicestershire, LE11 3TU, England
*Correspondence e-mail: m.kose@lboro.ac.uk
The title complex, [Ca(C27H30N4O3)2](ClO4)2·2CH3CN, is composed of centrosymmetric (CaL2)2+ cations [L = tris(2-hydroxybenzoylaminoethyl)amine = H3saltren], uncoordinated perchlorate anions and acetonitrile solvent molecules. The calcium ion is six-coordinated and is bonded to all phenoxy O atoms from both zwitterionic saltren molecules. There are strong intramolecular N—H⋯O hydrogen bonds. The cations are linked into chains via weak intermolecular C—H⋯O hydrogen bonds and C—H⋯π and π–π stacking interactions [centroid–centroid distances = 3.306 (3) and 3.415 (3) Å].
Related literature
For et al. (1985). For structures of transition metal complexes of H3saltren, see: Steinhauser et al. (2004); Elerman et al. (1994, 1995).
of the free ligand, see: GündüzExperimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2008); cell SAINT (Bruker, 2008); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536810053961/pv2371sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536810053961/pv2371Isup2.hkl
H3Saltren (0.508 g, 1.11 mmol) was dissolved in methanol (50 ml) followed by addition of Ca(ClO4)2.3H2O (0.185 g, 0.63 mmol) in methanol (20 ml). The reaction mixture was stirred at room temperature for two hours. Yellow precipitate was collected and washed with methanol (5 ml) and diethylether (20 ml) (yield 0.506 g, 0.44 mmol, 69.6%). X-ray quality crystals were obtained from acetonitrile solution of the title complex by slow evaporation.
H atoms bonded to C were inserted at calculated positions with C—H distances of 0.95, 0.98 and 0.99 Å for aryl, methyl and methylene H atoms, respectively, and refined using a riding model with Uiso(H) = 1.2 or 1.5Ueq(C). The H-atoms bonded to N-atoms were taken from the difference Fourier maps and were refined isotropically.
Data collection: APEX2 (Bruker, 2008); cell
SAINT (Bruker, 2008); data reduction: SAINT (Bruker, 2008); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).Fig. 1. Perspective view of centrosymmetric calcium complex [Ca(C27H30N4O3)2](ClO4)2(CH3CN)2; displacement ellipsoids are drawn at the 50% probability level and hydrogen atoms are omitted for clarity (Symmetry code (i) -x + 1, -y, -z + 1). | |
Fig. 2. Packing diagram viewed perpendicular to b, showing intramolecular hydrogen bonds and π-π (phenyl-phenyl) interactions. |
[Ca(C27H30N4O3)2](ClO4)2·2C2H3N | F(000) = 2600 |
Mr = 1238.19 | Dx = 1.358 Mg m−3 |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 9950 reflections |
a = 11.3469 (7) Å | θ = 2.2–27.4° |
b = 19.5307 (12) Å | µ = 0.27 mm−1 |
c = 27.3178 (16) Å | T = 150 K |
V = 6054.0 (6) Å3 | Block, yellow |
Z = 4 | 0.12 × 0.10 × 0.09 mm |
Bruker APEXII CCD diffractometer | 6915 independent reflections |
Radiation source: fine-focus sealed tube | 5810 reflections with I > 2.0σ(I) |
Graphite monochromator | Rint = 0.030 |
ϕ and ω scans | θmax = 27.5°, θmin = 1.5° |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | h = −14→14 |
Tmin = 0.662, Tmax = 0.746 | k = −25→25 |
55467 measured reflections | l = −34→35 |
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: inferred from neighbouring sites |
wR(F2) = 0.110 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0538P)2 + 3.4246P] where P = (Fo2 + 2Fc2)/3 |
6915 reflections | (Δ/σ)max = 0.002 |
398 parameters | Δρmax = 0.60 e Å−3 |
0 restraints | Δρmin = −0.39 e Å−3 |
[Ca(C27H30N4O3)2](ClO4)2·2C2H3N | V = 6054.0 (6) Å3 |
Mr = 1238.19 | Z = 4 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 11.3469 (7) Å | µ = 0.27 mm−1 |
b = 19.5307 (12) Å | T = 150 K |
c = 27.3178 (16) Å | 0.12 × 0.10 × 0.09 mm |
Bruker APEXII CCD diffractometer | 6915 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2008) | 5810 reflections with I > 2.0σ(I) |
Tmin = 0.662, Tmax = 0.746 | Rint = 0.030 |
55467 measured reflections |
R[F2 > 2σ(F2)] = 0.039 | 0 restraints |
wR(F2) = 0.110 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.05 | Δρmax = 0.60 e Å−3 |
6915 reflections | Δρmin = −0.39 e Å−3 |
398 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 | ||
Ca1 | 0.5000 | 0.0000 | 0.5000 | 0.01901 (10) | |
O1 | 0.38283 (10) | 0.08611 (5) | 0.53706 (4) | 0.0260 (2) | |
C1 | 0.32707 (13) | 0.13534 (8) | 0.51499 (5) | 0.0224 (3) | |
C2 | 0.25547 (15) | 0.12409 (8) | 0.47327 (6) | 0.0291 (3) | |
H2 | 0.2438 | 0.0786 | 0.4619 | 0.035* | |
C3 | 0.20240 (16) | 0.17746 (10) | 0.44891 (7) | 0.0349 (4) | |
H3 | 0.1557 | 0.1680 | 0.4208 | 0.042* | |
C4 | 0.21547 (17) | 0.24547 (9) | 0.46452 (7) | 0.0395 (4) | |
H4 | 0.1795 | 0.2818 | 0.4469 | 0.047* | |
C5 | 0.28043 (16) | 0.25839 (9) | 0.50526 (7) | 0.0340 (4) | |
H5 | 0.2879 | 0.3042 | 0.5166 | 0.041* | |
C6 | 0.33725 (13) | 0.20497 (8) | 0.53117 (6) | 0.0239 (3) | |
C7 | 0.40674 (14) | 0.22286 (8) | 0.57213 (5) | 0.0247 (3) | |
H7 | 0.4066 | 0.2695 | 0.5821 | 0.030* | |
N1 | 0.47075 (12) | 0.18036 (7) | 0.59710 (5) | 0.0243 (3) | |
C8 | 0.53399 (15) | 0.19940 (8) | 0.64171 (6) | 0.0277 (3) | |
H8A | 0.5444 | 0.2497 | 0.6429 | 0.033* | |
H8B | 0.6130 | 0.1779 | 0.6418 | 0.033* | |
C9 | 0.46415 (15) | 0.17550 (8) | 0.68610 (6) | 0.0264 (3) | |
H9A | 0.5005 | 0.1939 | 0.7163 | 0.032* | |
H9B | 0.3825 | 0.1931 | 0.6840 | 0.032* | |
N2 | 0.46228 (11) | 0.10039 (6) | 0.68827 (5) | 0.0228 (3) | |
C10 | 0.56302 (15) | 0.07362 (9) | 0.71617 (6) | 0.0290 (3) | |
H10A | 0.5388 | 0.0659 | 0.7505 | 0.035* | |
H10B | 0.6271 | 0.1080 | 0.7162 | 0.035* | |
C11 | 0.60888 (15) | 0.00683 (9) | 0.69464 (6) | 0.0307 (4) | |
H11A | 0.6682 | −0.0133 | 0.7170 | 0.037* | |
H11B | 0.5431 | −0.0261 | 0.6913 | 0.037* | |
N3 | 0.66223 (12) | 0.01909 (7) | 0.64666 (5) | 0.0283 (3) | |
C12 | 0.77320 (14) | 0.03357 (9) | 0.64084 (6) | 0.0303 (3) | |
H12 | 0.8224 | 0.0329 | 0.6690 | 0.036* | |
C13 | 0.82570 (14) | 0.05027 (8) | 0.59528 (6) | 0.0282 (3) | |
C14 | 0.94893 (15) | 0.06200 (9) | 0.59374 (7) | 0.0362 (4) | |
H14 | 0.9933 | 0.0605 | 0.6232 | 0.043* | |
C15 | 1.00481 (16) | 0.07539 (9) | 0.55058 (8) | 0.0385 (4) | |
H15 | 1.0872 | 0.0841 | 0.5499 | 0.046* | |
C16 | 0.93896 (16) | 0.07617 (9) | 0.50724 (7) | 0.0353 (4) | |
H16 | 0.9780 | 0.0844 | 0.4770 | 0.042* | |
C17 | 0.81902 (16) | 0.06529 (8) | 0.50726 (6) | 0.0313 (4) | |
H17 | 0.7772 | 0.0660 | 0.4771 | 0.038* | |
C18 | 0.75700 (14) | 0.05306 (7) | 0.55146 (6) | 0.0253 (3) | |
O2 | 0.64376 (10) | 0.04299 (6) | 0.55239 (4) | 0.0287 (2) | |
C19 | 0.34878 (15) | 0.07321 (8) | 0.70527 (6) | 0.0280 (3) | |
H19A | 0.3107 | 0.1072 | 0.7270 | 0.034* | |
H19B | 0.3626 | 0.0311 | 0.7246 | 0.034* | |
C20 | 0.26672 (14) | 0.05700 (8) | 0.66278 (6) | 0.0287 (3) | |
H20A | 0.1863 | 0.0484 | 0.6754 | 0.034* | |
H20B | 0.2630 | 0.0968 | 0.6404 | 0.034* | |
N4 | 0.30786 (12) | −0.00316 (6) | 0.63575 (5) | 0.0241 (3) | |
C21 | 0.29327 (13) | −0.06510 (8) | 0.65229 (6) | 0.0252 (3) | |
H21 | 0.2469 | −0.0706 | 0.6810 | 0.030* | |
C22 | 0.34110 (13) | −0.12487 (8) | 0.63089 (6) | 0.0233 (3) | |
C23 | 0.31923 (15) | −0.18869 (8) | 0.65401 (6) | 0.0308 (4) | |
H23 | 0.2708 | −0.1903 | 0.6824 | 0.037* | |
C24 | 0.36664 (16) | −0.24768 (9) | 0.63612 (7) | 0.0361 (4) | |
H24 | 0.3526 | −0.2901 | 0.6521 | 0.043* | |
C25 | 0.43665 (16) | −0.24480 (9) | 0.59373 (7) | 0.0376 (4) | |
H25 | 0.4690 | −0.2859 | 0.5809 | 0.045* | |
C26 | 0.45932 (16) | −0.18409 (9) | 0.57042 (7) | 0.0341 (4) | |
H26 | 0.5066 | −0.1842 | 0.5417 | 0.041* | |
C27 | 0.41389 (13) | −0.12088 (8) | 0.58811 (5) | 0.0231 (3) | |
O3 | 0.43711 (10) | −0.06298 (6) | 0.56747 (4) | 0.0285 (3) | |
C28 | 0.8355 (2) | 0.24381 (14) | 0.68889 (8) | 0.0537 (6) | |
C29 | 0.85639 (19) | 0.31612 (11) | 0.68130 (9) | 0.0505 (5) | |
H29A | 0.9341 | 0.3283 | 0.6943 | 0.076* | |
H29B | 0.7955 | 0.3427 | 0.6982 | 0.076* | |
H29C | 0.8538 | 0.3263 | 0.6462 | 0.076* | |
N5 | 0.8201 (3) | 0.18674 (14) | 0.69423 (9) | 0.0870 (9) | |
H4A | 0.3474 (18) | −0.0002 (10) | 0.6103 (8) | 0.034 (5)* | |
H3A | 0.6222 (19) | 0.0209 (11) | 0.6199 (8) | 0.040 (6)* | |
H1A | 0.4716 (19) | 0.1395 (12) | 0.5863 (8) | 0.046 (6)* | |
Cl1 | 0.96706 (4) | 0.89879 (2) | 0.698669 (15) | 0.03209 (11) | |
O4 | 1.04850 (18) | 0.84563 (10) | 0.70855 (9) | 0.0828 (6) | |
O5 | 1.02963 (14) | 0.96257 (8) | 0.69527 (6) | 0.0547 (4) | |
O6 | 0.88221 (16) | 0.90508 (10) | 0.73665 (7) | 0.0743 (6) | |
O7 | 0.90949 (18) | 0.88552 (10) | 0.65378 (6) | 0.0699 (5) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Ca1 | 0.0219 (2) | 0.01807 (19) | 0.01709 (19) | 0.00034 (15) | 0.00046 (15) | 0.00076 (14) |
O1 | 0.0295 (6) | 0.0200 (5) | 0.0285 (6) | 0.0045 (4) | −0.0004 (4) | 0.0005 (4) |
C1 | 0.0202 (7) | 0.0226 (7) | 0.0243 (7) | 0.0021 (6) | 0.0052 (6) | 0.0012 (6) |
C2 | 0.0294 (8) | 0.0270 (8) | 0.0309 (8) | 0.0006 (6) | −0.0015 (7) | −0.0034 (6) |
C3 | 0.0317 (9) | 0.0410 (10) | 0.0321 (9) | 0.0026 (7) | −0.0085 (7) | 0.0006 (7) |
C4 | 0.0426 (10) | 0.0326 (9) | 0.0432 (10) | 0.0087 (8) | −0.0118 (8) | 0.0084 (8) |
C5 | 0.0383 (9) | 0.0225 (8) | 0.0413 (10) | 0.0049 (7) | −0.0063 (7) | 0.0016 (7) |
C6 | 0.0253 (7) | 0.0219 (7) | 0.0245 (7) | 0.0019 (6) | 0.0014 (6) | 0.0013 (6) |
C7 | 0.0284 (8) | 0.0207 (7) | 0.0251 (7) | −0.0012 (6) | 0.0041 (6) | 0.0001 (6) |
N1 | 0.0290 (7) | 0.0219 (6) | 0.0219 (6) | −0.0040 (5) | 0.0004 (5) | 0.0009 (5) |
C8 | 0.0337 (8) | 0.0272 (8) | 0.0222 (7) | −0.0086 (6) | −0.0027 (6) | 0.0023 (6) |
C9 | 0.0342 (8) | 0.0238 (7) | 0.0211 (7) | −0.0018 (6) | 0.0006 (6) | −0.0010 (6) |
N2 | 0.0250 (6) | 0.0220 (6) | 0.0214 (6) | −0.0021 (5) | 0.0007 (5) | 0.0024 (5) |
C10 | 0.0324 (9) | 0.0321 (8) | 0.0224 (7) | 0.0001 (7) | −0.0039 (6) | 0.0022 (6) |
C11 | 0.0312 (8) | 0.0319 (8) | 0.0290 (8) | 0.0031 (7) | −0.0017 (7) | 0.0065 (6) |
N3 | 0.0261 (7) | 0.0308 (7) | 0.0279 (7) | 0.0026 (6) | −0.0029 (6) | 0.0001 (6) |
C12 | 0.0266 (8) | 0.0315 (8) | 0.0326 (8) | 0.0039 (6) | −0.0062 (6) | −0.0042 (7) |
C13 | 0.0246 (8) | 0.0255 (7) | 0.0344 (8) | 0.0007 (6) | −0.0018 (6) | −0.0045 (6) |
C14 | 0.0257 (8) | 0.0388 (10) | 0.0442 (10) | −0.0014 (7) | −0.0047 (7) | −0.0077 (8) |
C15 | 0.0254 (8) | 0.0340 (9) | 0.0561 (12) | −0.0043 (7) | 0.0050 (8) | −0.0066 (8) |
C16 | 0.0367 (9) | 0.0250 (8) | 0.0442 (10) | −0.0025 (7) | 0.0113 (8) | −0.0018 (7) |
C17 | 0.0355 (9) | 0.0232 (8) | 0.0352 (9) | −0.0019 (6) | 0.0016 (7) | 0.0001 (6) |
C18 | 0.0266 (7) | 0.0164 (7) | 0.0330 (8) | −0.0008 (6) | −0.0011 (6) | −0.0029 (6) |
O2 | 0.0248 (6) | 0.0308 (6) | 0.0304 (6) | −0.0023 (4) | −0.0034 (4) | −0.0008 (5) |
C19 | 0.0309 (8) | 0.0266 (8) | 0.0265 (8) | −0.0046 (6) | 0.0083 (6) | −0.0034 (6) |
C20 | 0.0237 (8) | 0.0246 (8) | 0.0377 (9) | 0.0013 (6) | 0.0047 (6) | −0.0053 (6) |
N4 | 0.0224 (6) | 0.0230 (6) | 0.0269 (7) | −0.0008 (5) | 0.0023 (5) | −0.0025 (5) |
C21 | 0.0216 (7) | 0.0280 (8) | 0.0262 (7) | −0.0026 (6) | 0.0026 (6) | −0.0006 (6) |
C22 | 0.0226 (7) | 0.0227 (7) | 0.0245 (7) | −0.0018 (6) | 0.0009 (6) | 0.0010 (6) |
C23 | 0.0315 (8) | 0.0283 (8) | 0.0328 (9) | −0.0072 (6) | 0.0058 (7) | 0.0050 (7) |
C24 | 0.0385 (9) | 0.0211 (8) | 0.0486 (10) | −0.0063 (7) | 0.0035 (8) | 0.0059 (7) |
C25 | 0.0402 (10) | 0.0217 (8) | 0.0509 (11) | −0.0003 (7) | 0.0077 (8) | −0.0063 (7) |
C26 | 0.0387 (9) | 0.0281 (8) | 0.0356 (9) | −0.0017 (7) | 0.0125 (7) | −0.0049 (7) |
C27 | 0.0241 (7) | 0.0236 (7) | 0.0217 (7) | −0.0019 (6) | −0.0004 (6) | 0.0009 (6) |
O3 | 0.0356 (6) | 0.0242 (6) | 0.0257 (6) | −0.0002 (5) | 0.0054 (5) | 0.0050 (4) |
C28 | 0.0484 (12) | 0.0695 (15) | 0.0431 (11) | −0.0228 (11) | −0.0127 (9) | 0.0133 (10) |
C29 | 0.0410 (11) | 0.0524 (13) | 0.0582 (13) | 0.0026 (9) | 0.0053 (10) | 0.0008 (10) |
N5 | 0.105 (2) | 0.0817 (17) | 0.0743 (16) | −0.0495 (15) | −0.0320 (14) | 0.0278 (13) |
Cl1 | 0.0298 (2) | 0.0318 (2) | 0.0346 (2) | −0.00051 (15) | −0.00320 (16) | −0.00806 (16) |
O4 | 0.0778 (13) | 0.0586 (11) | 0.1119 (17) | 0.0288 (10) | −0.0151 (12) | 0.0028 (11) |
O5 | 0.0497 (9) | 0.0468 (9) | 0.0675 (10) | −0.0183 (7) | 0.0038 (7) | −0.0143 (7) |
O6 | 0.0635 (11) | 0.0894 (13) | 0.0702 (12) | −0.0249 (10) | 0.0329 (9) | −0.0277 (10) |
O7 | 0.0905 (13) | 0.0724 (11) | 0.0469 (9) | −0.0234 (10) | −0.0246 (9) | −0.0098 (8) |
Ca1—O2i | 2.3269 (11) | C13—C18 | 1.430 (2) |
Ca1—O2 | 2.3269 (11) | C14—C15 | 1.364 (3) |
Ca1—O3i | 2.3279 (11) | C14—H14 | 0.9500 |
Ca1—O3 | 2.3279 (11) | C15—C16 | 1.400 (3) |
Ca1—O1i | 2.3709 (10) | C15—H15 | 0.9500 |
Ca1—O1 | 2.3709 (10) | C16—C17 | 1.377 (3) |
O1—C1 | 1.2993 (18) | C16—H16 | 0.9500 |
C1—C2 | 1.417 (2) | C17—C18 | 1.418 (2) |
C1—C6 | 1.435 (2) | C17—H17 | 0.9500 |
C2—C3 | 1.375 (2) | C18—O2 | 1.3001 (19) |
C2—H2 | 0.9500 | C19—C20 | 1.522 (2) |
C3—C4 | 1.403 (3) | C19—H19A | 0.9900 |
C3—H3 | 0.9500 | C19—H19B | 0.9900 |
C4—C5 | 1.358 (3) | C20—N4 | 1.4642 (19) |
C4—H4 | 0.9500 | C20—H20A | 0.9900 |
C5—C6 | 1.416 (2) | C20—H20B | 0.9900 |
C5—H5 | 0.9500 | N4—C21 | 1.302 (2) |
C6—C7 | 1.413 (2) | N4—H4A | 0.83 (2) |
C7—N1 | 1.297 (2) | C21—C22 | 1.414 (2) |
C7—H7 | 0.9500 | C21—H21 | 0.9500 |
N1—C8 | 1.462 (2) | C22—C23 | 1.419 (2) |
N1—H1A | 0.85 (2) | C22—C27 | 1.433 (2) |
C8—C9 | 1.522 (2) | C23—C24 | 1.362 (2) |
C8—H8A | 0.9900 | C23—H23 | 0.9500 |
C8—H8B | 0.9900 | C24—C25 | 1.405 (3) |
C9—N2 | 1.4684 (19) | C24—H24 | 0.9500 |
C9—H9A | 0.9900 | C25—C26 | 1.370 (2) |
C9—H9B | 0.9900 | C25—H25 | 0.9500 |
N2—C19 | 1.468 (2) | C26—C27 | 1.422 (2) |
N2—C10 | 1.470 (2) | C26—H26 | 0.9500 |
C10—C11 | 1.523 (2) | C27—O3 | 1.2908 (18) |
C10—H10A | 0.9900 | C28—N5 | 1.138 (3) |
C10—H10B | 0.9900 | C28—C29 | 1.447 (3) |
C11—N3 | 1.463 (2) | C29—H29A | 0.9800 |
C11—H11A | 0.9900 | C29—H29B | 0.9800 |
C11—H11B | 0.9900 | C29—H29C | 0.9800 |
N3—C12 | 1.300 (2) | Cl1—O7 | 1.4135 (16) |
N3—H3A | 0.86 (2) | Cl1—O4 | 1.4158 (18) |
C12—C13 | 1.418 (2) | Cl1—O6 | 1.4209 (16) |
C12—H12 | 0.9500 | Cl1—O5 | 1.4368 (15) |
C13—C14 | 1.418 (2) | ||
O2i—Ca1—O2 | 180.00 (4) | N3—C12—H12 | 117.8 |
O2i—Ca1—O3i | 85.33 (4) | C13—C12—H12 | 117.8 |
O2—Ca1—O3i | 94.67 (4) | C14—C13—C12 | 118.54 (16) |
O2i—Ca1—O3 | 94.67 (4) | C14—C13—C18 | 120.45 (16) |
O2—Ca1—O3 | 85.33 (4) | C12—C13—C18 | 120.98 (14) |
O3i—Ca1—O3 | 180.0 | C15—C14—C13 | 121.02 (17) |
O2i—Ca1—O1i | 82.79 (4) | C15—C14—H14 | 119.5 |
O2—Ca1—O1i | 97.21 (4) | C13—C14—H14 | 119.5 |
O3i—Ca1—O1i | 82.23 (4) | C14—C15—C16 | 119.01 (16) |
O3—Ca1—O1i | 97.77 (4) | C14—C15—H15 | 120.5 |
O2i—Ca1—O1 | 97.21 (4) | C16—C15—H15 | 120.5 |
O2—Ca1—O1 | 82.79 (4) | C17—C16—C15 | 121.68 (17) |
O3i—Ca1—O1 | 97.77 (4) | C17—C16—H16 | 119.2 |
O3—Ca1—O1 | 82.23 (4) | C15—C16—H16 | 119.2 |
O1i—Ca1—O1 | 180.00 (5) | C16—C17—C18 | 121.11 (17) |
C1—O1—Ca1 | 126.86 (9) | C16—C17—H17 | 119.4 |
O1—C1—C2 | 122.54 (14) | C18—C17—H17 | 119.4 |
O1—C1—C6 | 121.28 (14) | O2—C18—C17 | 122.19 (15) |
C2—C1—C6 | 116.17 (13) | O2—C18—C13 | 121.11 (14) |
C3—C2—C1 | 121.52 (15) | C17—C18—C13 | 116.68 (15) |
C3—C2—H2 | 119.2 | C18—O2—Ca1 | 137.34 (10) |
C1—C2—H2 | 119.2 | N2—C19—C20 | 111.75 (13) |
C2—C3—C4 | 121.61 (16) | N2—C19—H19A | 109.3 |
C2—C3—H3 | 119.2 | C20—C19—H19A | 109.3 |
C4—C3—H3 | 119.2 | N2—C19—H19B | 109.3 |
C5—C4—C3 | 118.83 (16) | C20—C19—H19B | 109.3 |
C5—C4—H4 | 120.6 | H19A—C19—H19B | 107.9 |
C3—C4—H4 | 120.6 | N4—C20—C19 | 110.89 (13) |
C4—C5—C6 | 121.31 (16) | N4—C20—H20A | 109.5 |
C4—C5—H5 | 119.3 | C19—C20—H20A | 109.5 |
C6—C5—H5 | 119.3 | N4—C20—H20B | 109.5 |
C7—C6—C5 | 117.89 (14) | C19—C20—H20B | 109.5 |
C7—C6—C1 | 121.57 (14) | H20A—C20—H20B | 108.0 |
C5—C6—C1 | 120.51 (14) | C21—N4—C20 | 122.02 (14) |
N1—C7—C6 | 124.81 (14) | C21—N4—H4A | 115.1 (13) |
N1—C7—H7 | 117.6 | C20—N4—H4A | 122.6 (14) |
C6—C7—H7 | 117.6 | N4—C21—C22 | 125.08 (14) |
C7—N1—C8 | 123.40 (14) | N4—C21—H21 | 117.5 |
C7—N1—H1A | 115.1 (15) | C22—C21—H21 | 117.5 |
C8—N1—H1A | 121.5 (15) | C21—C22—C23 | 118.28 (14) |
N1—C8—C9 | 109.29 (13) | C21—C22—C27 | 120.90 (14) |
N1—C8—H8A | 109.8 | C23—C22—C27 | 120.76 (14) |
C9—C8—H8A | 109.8 | C24—C23—C22 | 120.93 (15) |
N1—C8—H8B | 109.8 | C24—C23—H23 | 119.5 |
C9—C8—H8B | 109.8 | C22—C23—H23 | 119.5 |
H8A—C8—H8B | 108.3 | C23—C24—C25 | 119.02 (16) |
N2—C9—C8 | 110.25 (13) | C23—C24—H24 | 120.5 |
N2—C9—H9A | 109.6 | C25—C24—H24 | 120.5 |
C8—C9—H9A | 109.6 | C26—C25—C24 | 121.57 (16) |
N2—C9—H9B | 109.6 | C26—C25—H25 | 119.2 |
C8—C9—H9B | 109.6 | C24—C25—H25 | 119.2 |
H9A—C9—H9B | 108.1 | C25—C26—C27 | 121.68 (16) |
C19—N2—C9 | 112.74 (12) | C25—C26—H26 | 119.2 |
C19—N2—C10 | 112.92 (12) | C27—C26—H26 | 119.2 |
C9—N2—C10 | 111.41 (12) | O3—C27—C26 | 122.55 (14) |
N2—C10—C11 | 111.72 (13) | O3—C27—C22 | 121.43 (14) |
N2—C10—H10A | 109.3 | C26—C27—C22 | 116.02 (14) |
C11—C10—H10A | 109.3 | C27—O3—Ca1 | 150.62 (10) |
N2—C10—H10B | 109.3 | N5—C28—C29 | 178.9 (3) |
C11—C10—H10B | 109.3 | C28—C29—H29A | 109.5 |
H10A—C10—H10B | 107.9 | C28—C29—H29B | 109.5 |
N3—C11—C10 | 110.31 (13) | H29A—C29—H29B | 109.5 |
N3—C11—H11A | 109.6 | C28—C29—H29C | 109.5 |
C10—C11—H11A | 109.6 | H29A—C29—H29C | 109.5 |
N3—C11—H11B | 109.6 | H29B—C29—H29C | 109.5 |
C10—C11—H11B | 109.6 | O7—Cl1—O4 | 109.43 (13) |
H11A—C11—H11B | 108.1 | O7—Cl1—O6 | 109.65 (12) |
C12—N3—C11 | 123.08 (15) | O4—Cl1—O6 | 111.50 (14) |
C12—N3—H3A | 113.4 (14) | O7—Cl1—O5 | 109.34 (11) |
C11—N3—H3A | 123.3 (14) | O4—Cl1—O5 | 109.00 (12) |
N3—C12—C13 | 124.35 (15) | O6—Cl1—O5 | 107.88 (10) |
Symmetry code: (i) −x+1, −y, −z+1. |
Cg1 is the centroid of the C1–C6 ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···O1 | 0.85 (2) | 1.98 (2) | 2.6597 (17) | 136 (2) |
N3—H3A···O2 | 0.86 (2) | 1.91 (2) | 2.6256 (18) | 140 (2) |
N4—H4A···O3 | 0.83 (2) | 1.98 (2) | 2.6449 (17) | 137 (2) |
C3—H3···O7ii | 0.95 | 2.41 | 3.316 (2) | 160 |
C20—H20A···O5iii | 0.99 | 2.50 | 3.380 (2) | 148 |
C10—H10A···O5iv | 0.99 | 2.50 | 3.271 (2) | 134 |
C21—H21···O5iii | 0.95 | 2.58 | 3.259 (2) | 129 |
C29—H29B···O6v | 0.98 | 2.58 | 3.555 (3) | 173 |
C26—H26···Cg1i | 0.95 | 2.68 | 3.489 (2) | 143 |
Symmetry codes: (i) −x+1, −y, −z+1; (ii) −x+1, −y+1, −z+1; (iii) x−1, y−1, z; (iv) x−1/2, y−1, −z+3/2; (v) −x+3/2, y−1/2, z. |
Experimental details
Crystal data | |
Chemical formula | [Ca(C27H30N4O3)2](ClO4)2·2C2H3N |
Mr | 1238.19 |
Crystal system, space group | Orthorhombic, Pbca |
Temperature (K) | 150 |
a, b, c (Å) | 11.3469 (7), 19.5307 (12), 27.3178 (16) |
V (Å3) | 6054.0 (6) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.27 |
Crystal size (mm) | 0.12 × 0.10 × 0.09 |
Data collection | |
Diffractometer | Bruker APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2008) |
Tmin, Tmax | 0.662, 0.746 |
No. of measured, independent and observed [I > 2.0σ(I)] reflections | 55467, 6915, 5810 |
Rint | 0.030 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.039, 0.110, 1.05 |
No. of reflections | 6915 |
No. of parameters | 398 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.60, −0.39 |
Computer programs: APEX2 (Bruker, 2008), SAINT (Bruker, 2008), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
Cg1 is the centroid of the C1–C6 ring. |
D—H···A | D—H | H···A | D···A | D—H···A |
N1—H1A···O1 | 0.85 (2) | 1.98 (2) | 2.6597 (17) | 136 (2) |
N3—H3A···O2 | 0.86 (2) | 1.91 (2) | 2.6256 (18) | 140 (2) |
N4—H4A···O3 | 0.83 (2) | 1.98 (2) | 2.6449 (17) | 137 (2) |
C3—H3···O7i | 0.95 | 2.41 | 3.316 (2) | 160 |
C20—H20A···O5ii | 0.99 | 2.50 | 3.380 (2) | 148 |
C10—H10A···O5iii | 0.99 | 2.50 | 3.271 (2) | 134 |
C21—H21···O5ii | 0.95 | 2.58 | 3.259 (2) | 129 |
C29—H29B···O6iv | 0.98 | 2.58 | 3.555 (3) | 173 |
C26—H26···Cg1v | 0.95 | 2.68 | 3.489 (2) | 143 |
Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) x−1, y−1, z; (iii) x−1/2, y−1, −z+3/2; (iv) −x+3/2, y−1/2, z; (v) −x+1, −y, −z+1. |
Acknowledgements
We are grateful to the Turkish Government for the award of a postgraduate scholarship (to MK).
References
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The crystal structures and coordination chemistry of transition metal complexes of H3saltren, tris(2-hydroxybenzoylaminoethyl)amine (L), a tripodal ligand, have been described in detail (Steinhauser et al., 2004; Elerman et al., 1994); Elerman et al., 1995). Here, we report the first example of an earth alkaline metal (Ca+2) complex of H3saltren.
The crystal structure of the title complex contains centrosymmetric (CaL2)+2 cations, uncoordinated perchlorate anions and acetonitrile molecules (Fig. 1). Each calcium ion is six-coordinated, bonded to all phenoxy O atoms from two saltren molecules. There are strong intramolecular hydrogen bonds of the type N—H···O between protonated imine and deprotonated phenol-oxygen atoms (Table 1). The cations are linked into chains via intermolecular C—H···O and C—H··· N type weak hydrogen bonds and C—H···π interactions (Tab. 1 and Fig. 2). There is evidence of π-π stacking in the crystal structure; C16 is stacked with C16* and C15* of an adjacent molecule (* = 2 - x, -y, 1 - z) with separation of 3.306 (3) and 3.415 (3) Å, respectively (Fig. 2). Protonated imine distances (C═N distances) (mean 1.300 (2) Å) are longer than the corresponding C═N distances reported in the neutral ligand (mean 1.267 Å) (Gündüz et al., 1985). The longer C═N distances were also determined by IR spectroscopy; while C═N stretch is observed at 1633 cm-1 in the neutral ligand, by protonation of imine, C═N stretch shifts to 1654 cm-1.