Dramatic Effect of A Ring Size of Alicyclic α-Dioximate Ligand Synthons on Kinetics of the Template Synthesis and of the Acidic Decomposition of the Methylboron-Capped Iron(II) Clathrochelates
Abstract
:1. Introduction
2. Results and Discussion
2.1. Synthesis and Spectra
2.2. Kinetics of the Template Synthesis of FeOx3(BCH3)2
2.3. X-ray Structures
2.4. Acidic Decomposition of FeOx3(BCH3)2 in Its Diluted Solutions
3. Experimental
3.1. Synthesis
3.1.1. Materials and Methods
3.1.2. Synthesis and Spectral Characteristics
3.1.3. Single Crystal X-ray Diffraction Experiments
3.2. Kinetic Studies
3.2.1. Materials and Methods
3.2.2. Kinetic Experiments
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
Sample Availability
References
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Complex | b logβ3 | ks s−1 L3 mol−3 | k1 × 10−5 s−1 L3 mol−3 | k−1 s−1 | k2 s−1 L mol−1 | k−2/k3 | k−3 s−1 L2 mol−2 | cK4 | K5 | k6 × 105 s−1 L2 mol−2 | k−6 s−1 L2 mol−2 |
---|---|---|---|---|---|---|---|---|---|---|---|
a FeOx3(BCH3)2 | b 5.37 | 4.36 (pH2.38) 5.73 (pH3.18) 6.78 (pH3.75) | 1.86 (pH2.38) 2.45 (pH3.18) 2.89 (pH3.75) | 343 (pH2.38) 451 (pH3.18) 533 (pH3.75) | 8960 | ||||||
FeOx3(BOH)2 | b 5.37 | 0.445 | 0.19 | 22 | 424 | 0.12 | 129 | ||||
FeOx3(BC6H5)2 | 1.2 × 104 | 0.09 | 292 | 240 | 5.0 | 3.5 | |||||
FeOx3(Bn-C4H9)2 | 2.1 × 104 | 0.11 | 147 | 129 | 31.1 | 5.9 | |||||
FeNx3(BCH3)2 | b 4.94 | 3.2 × 103 |
Parameter | a FeOx3(BCH3)2 (5) | FeOx3(Bn-C4H9)2 [5] | b FeOx3(BAd)2 [36] | H2Ox [35] |
---|---|---|---|---|
Fe–(Å) | 1.910(2)–1.921(2) | 1.868(11)–1.929(11) | 1.895(2)–1.911(2) | - |
av. 1.916 | av. 1.895 | av. 1.899 | ||
B–O (Å) | 1.512(3)–1.526(3) | 1.497(19)–1.510(20) | 1.495(4)–1.515(4) | - |
av. 1.519 | av. 1.505 | av. 1.502 | ||
N–O (Å) | 1.387(2)–1.394(2) | 1.363(13)–1.394(10) | 1.366(3)–1.383(3) | 1.409(2)–1.413(4) |
av. 1.390 | av. 1.375 | av. 1.375 | av. 1.411 | |
C=N (Å) | 1.315(3)–1.323(2) | 1.28(2)–1.34(2) | 1.289(4)–1.313(4) | 1.291(3)–1.293(7) |
av. 1.318 | av. 1.314 | av. 1.303 | av. 1.292 | |
chelate C–C (Å) | 1.460(3)–1.463(3) | 1.439(16)–1.459(17) | 1.440(5)–1.454(5) | 1.492(7) |
av. 1.461 | av. 1.445 | av. 1.447 | ||
c N…N (Å) | 2.432(2)–2.436(3) | 2.387(12)–2.412(14) | 2.401(4)–2.408(4) | 2.667(3) |
av. 2.434 | av. 2.397 | av. 2.405 | ||
N=C–C=N (°) | av. 6.8 | av. 5.7 | av. 6.2 | 26.6(6) |
φ (°) | 26.0 | 25.1 | 25.2 | |
α (°) | 78.8 | 78.4 | 78.6 | |
h (Å) | 2.34 | 2.31 | 2.31 |
Parameter | a FeNx3(BCH3)2 (4) | FeNx3(Bn-C4H9)2 [52] | b FeNx3(BAd)2 [36] | H2Nx [35] |
---|---|---|---|---|
Fe–N (Å) | 1.911(2)–1.918(2) | 1.895(3)–1.923(3) | 1.898(2)–1.906(2) | |
av. 1.914 | av. 1.911 | av. 1.902 | ||
B–O (Å) | 1.498(3)–1.513(3) | 1.466(5)–1.532(5) | 1.499(3)–1.506(3) | |
av. 1.503 | av. 1.504 | av. 1.503 | ||
N–O (Å) | 1.372(2)–1.379(2) | 1.368(3)–1.386(3) | 1.365(2)–1.374(2) | 1.402(3)–1.410(3) |
av. 1.376 | av. 1.376 | av. 1.369 | av. 1.406 | |
C=N (Å) | 1.302(3)–1.314(3) | 1.295(5)–1.325(4) | 1.304(3)–1.308(2) | 1.276(3)–1.280(3) |
av. 1.308 | av. 1.309 | av. 1.306 | av. 1.278 | |
C–C (Å) | 1.435(3)–1.446(3) | 1.414(4)–1.441(4) | 1.432(2)–1.439(3) | 1.489(3) |
av. 1.440 | av. 1.428 | av. 1.436 | ||
c N…N (Å) | 2.420(2)–2.424(3) | 2.402(3)–2.427(3) | 2.413(3)–2.425(2) | 2.682(3) |
av. 2.421 | av. 2.414 | av. 2.417 | ||
N=C–C=N (°) | av. 6.5 | av. 7.6 | av. 6.0 | 26.2(2) |
φ (°) | 18.9 | 21.1 | 22.9 | |
α (°) | 78.4 | 78.4 | 79 | |
h (Å) | 2.37 | 2.35 | 2.34 |
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Pomadchik, A.L.; Belov, A.S.; Lebed, E.G.; Belaya, I.G.; Vologzhanina, A.V.; Voloshin, Y.Z. Dramatic Effect of A Ring Size of Alicyclic α-Dioximate Ligand Synthons on Kinetics of the Template Synthesis and of the Acidic Decomposition of the Methylboron-Capped Iron(II) Clathrochelates. Molecules 2021, 26, 4019. https://doi.org/10.3390/molecules26134019
Pomadchik AL, Belov AS, Lebed EG, Belaya IG, Vologzhanina AV, Voloshin YZ. Dramatic Effect of A Ring Size of Alicyclic α-Dioximate Ligand Synthons on Kinetics of the Template Synthesis and of the Acidic Decomposition of the Methylboron-Capped Iron(II) Clathrochelates. Molecules. 2021; 26(13):4019. https://doi.org/10.3390/molecules26134019
Chicago/Turabian StylePomadchik, Alexander L., Alexander S. Belov, Ekaterina G. Lebed, Irina G. Belaya, Anna V. Vologzhanina, and Yan Z. Voloshin. 2021. "Dramatic Effect of A Ring Size of Alicyclic α-Dioximate Ligand Synthons on Kinetics of the Template Synthesis and of the Acidic Decomposition of the Methylboron-Capped Iron(II) Clathrochelates" Molecules 26, no. 13: 4019. https://doi.org/10.3390/molecules26134019