Chinese Journal of Catalysis ›› 2021, Vol. 42 ›› Issue (6): 1030-1039.DOI: 10.1016/S1872-2067(20)63707-X
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Chun Zhua, Jin-Xia Liangb, Yang Menga, Jian Linc,*(), Zexing Caod,#()
Received:
2020-07-06
Accepted:
2020-08-25
Online:
2021-06-18
Published:
2021-01-30
Contact:
Jian Lin,Zexing Cao
About author:
#Tel: +86-592-2186081; Fax: +86-592-2183047; E-mail: zxcao@xmu.edu.cnSupported by:
Chun Zhu, Jin-Xia Liang, Yang Meng, Jian Lin, Zexing Cao. Mn-corrolazine-based 2D-nanocatalytic material with single Mn atoms for catalytic oxidation of alkane to alcohol[J]. Chinese Journal of Catalysis, 2021, 42(6): 1030-1039.
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URL: https://www.cjcatal.com/EN/10.1016/S1872-2067(20)63707-X
Scheme 1. Manganese corrolazine dimer (di-Mncor), tetramer (tetra-Mncor) and their extended two-dimensional nanocatalytic material (2D-Mncor) constructed by combining Mn-corrolazines and ethynes.
Fig. 1. Optimized geometries and relatively energies (kcal/mol) of di-Mncor in (a) singlet and (b) nonet states; tetra-Mncor in (c) singlet and (d) 17-et states (top view).
Polymer (State) | dMn-N1 dMn-N2 | dMn-N3 dMn-N4 | dc≡c | ΔE | ρspin/μB Mn |
---|---|---|---|---|---|
Di-Mncor (nonet) | 1.864, 1.864 1.864, 1.864 | 1.860, 1.861 1.860, 1.861 | 1.218, 1.218 | 0.0 | 3.77, 3.77 |
Di-Mncor (singlet) | 1.848, 1.848 1.848, 1.848 | 1.863, 1.863 1.863, 1.862 | 1.218, 1.218 | 98.65 | — |
Tetra-Mncor (17-et) | 1.865, 1.878 1.866, 1.879 1.866, 1.880 1.866, 1.878 | 1.868, 1.867 1.868, 1.867 1.868, 1.867 1.868, 1.866 | 1.215, 1.222 1.215, 1.223 1.216, 1.224 1.216, 1.224 | 0.0 | 3.77, 3.77 3.77, 3.77 |
Tetra-Mncor (singlet) | 1.847, 1.856 1.847, 1.856 1.847, 1.856 1.848, 1.856 | 1.865, 1.865 1.865, 1.865 1.865, 1.865 1.865, 1.865 | 1.216, 1.222 1.216, 1.222 1.217, 1.224 1.217, 1.224 | 194.38 | — |
2D-Mncor (FM) | 1.903, 1.904 1.903, 1.904 | 1.885, 1.886 1.885, 1.886 | 1.230, 1.231 | 13.34 | 3.57, 3.57 |
2D-Mncor (AFM) | 1.903, 1.904 1.903, 1.905 | 1.885, 1.886 1.885, 1.887 | 1.231, 1.231 | 0.0 | 3.65, -3.65 |
Table 1 Selected optimized bond lengths (?), Mulliken spin densities (ρspin) of Mn, magnetic moment (μB), and relative energies (ΔE, kcal/mol) of Mn(III)-corrolazine in di-Mncor in the singlet and nonet states, tetra-Mncor in the single and 17-et states, 2D-Mncor with ferromagnetism (FM) and antiferromagnetism (AFM).
Polymer (State) | dMn-N1 dMn-N2 | dMn-N3 dMn-N4 | dc≡c | ΔE | ρspin/μB Mn |
---|---|---|---|---|---|
Di-Mncor (nonet) | 1.864, 1.864 1.864, 1.864 | 1.860, 1.861 1.860, 1.861 | 1.218, 1.218 | 0.0 | 3.77, 3.77 |
Di-Mncor (singlet) | 1.848, 1.848 1.848, 1.848 | 1.863, 1.863 1.863, 1.862 | 1.218, 1.218 | 98.65 | — |
Tetra-Mncor (17-et) | 1.865, 1.878 1.866, 1.879 1.866, 1.880 1.866, 1.878 | 1.868, 1.867 1.868, 1.867 1.868, 1.867 1.868, 1.866 | 1.215, 1.222 1.215, 1.223 1.216, 1.224 1.216, 1.224 | 0.0 | 3.77, 3.77 3.77, 3.77 |
Tetra-Mncor (singlet) | 1.847, 1.856 1.847, 1.856 1.847, 1.856 1.848, 1.856 | 1.865, 1.865 1.865, 1.865 1.865, 1.865 1.865, 1.865 | 1.216, 1.222 1.216, 1.222 1.217, 1.224 1.217, 1.224 | 194.38 | — |
2D-Mncor (FM) | 1.903, 1.904 1.903, 1.904 | 1.885, 1.886 1.885, 1.886 | 1.230, 1.231 | 13.34 | 3.57, 3.57 |
2D-Mncor (AFM) | 1.903, 1.904 1.903, 1.905 | 1.885, 1.886 1.885, 1.887 | 1.231, 1.231 | 0.0 | 3.65, -3.65 |
Polymer (State) | dMn-N1 dMn-N2 | dMn-N3 dMn-N4 | dO-O | ΔE | ρspin/μB | ||
---|---|---|---|---|---|---|---|
aO | bO | Mn | |||||
Di-O-Mncor (13-et) | 1.867, 1.868 1.867, 1.868 | 1.865, 1.864 1.864, 1.864 | 1.214 1.214 | 0.0 | 1.03 1.03 | 0.98 0.98 | 3.77 3.77 |
Di-O-Mncor (quintet) | 1.874, 1.874 1.874, 1.873 | 1.871, 1.871 1.871, 1.871 | 1.216 1.216 | 2.98 | -1.03 -1.03 | -0.92 -0.92 | 3.74 3.74 |
Di-O-Mncor (singlet) | 1.871, 1.877 1.873, 1.876 | 1.899, 1.894 1.896, 1.894 | 1.256 1.256 | 84.14 | — | — | — |
Tetra-O-Mncor (singlet) | 1.858, 1.897 1.865, 1.894 1.858, 1.897 1.865, 1.894 | 1.886, 1.894 1.893, 1.898 1.886, 1.894 1.893, 1.898 | 1.254 1.255 1.255 1.256 | — | — | — | — |
2D-O-Mncor (spin-polarized) | 1.921, 1.923 1.920, 1.921 | 1.903, 1.902 1.903, 1.904 | 1.262 1.262 | 0.0 | -0.73 0.73 | -0.58 0.57 | 3.58 -3.58 |
2D-O-Mncor (spin-unpolarized) | 1.925, 1.929 1.927, 1.928 | 1.917, 1.918 1.917, 1.918 | 1.267 1.267 | 74.53 | — | — | — |
Table 2 The bond lengths of Mn-N (?), the relative energies (ΔG, kcal/mol) and Mulliken spin densities (ρspin), selected atoms’ magnetic moments (μB) of the complexes of O2 and Mn(III)-corrolazine in different states of di-O-Mncor, tetra-O-Mncor and 2D-Mncor.
Polymer (State) | dMn-N1 dMn-N2 | dMn-N3 dMn-N4 | dO-O | ΔE | ρspin/μB | ||
---|---|---|---|---|---|---|---|
aO | bO | Mn | |||||
Di-O-Mncor (13-et) | 1.867, 1.868 1.867, 1.868 | 1.865, 1.864 1.864, 1.864 | 1.214 1.214 | 0.0 | 1.03 1.03 | 0.98 0.98 | 3.77 3.77 |
Di-O-Mncor (quintet) | 1.874, 1.874 1.874, 1.873 | 1.871, 1.871 1.871, 1.871 | 1.216 1.216 | 2.98 | -1.03 -1.03 | -0.92 -0.92 | 3.74 3.74 |
Di-O-Mncor (singlet) | 1.871, 1.877 1.873, 1.876 | 1.899, 1.894 1.896, 1.894 | 1.256 1.256 | 84.14 | — | — | — |
Tetra-O-Mncor (singlet) | 1.858, 1.897 1.865, 1.894 1.858, 1.897 1.865, 1.894 | 1.886, 1.894 1.893, 1.898 1.886, 1.894 1.893, 1.898 | 1.254 1.255 1.255 1.256 | — | — | — | — |
2D-O-Mncor (spin-polarized) | 1.921, 1.923 1.920, 1.921 | 1.903, 1.902 1.903, 1.904 | 1.262 1.262 | 0.0 | -0.73 0.73 | -0.58 0.57 | 3.58 -3.58 |
2D-O-Mncor (spin-unpolarized) | 1.925, 1.929 1.927, 1.928 | 1.917, 1.918 1.917, 1.918 | 1.267 1.267 | 74.53 | — | — | — |
Fig. 3. Optimized geometries of di-O-Mncor complexes consisting of O2 and di-Mncor in (a) singlet, (b) quintet, and (c) 13-et states. (d) Tetra-O-Mncor in the singlet state consisting of O2 and tetra-Mncor with specific bond lengths (?).
Fig. 4. The optimized structures of quintet-, triplet- and singlet-state complexes of Mn(III)-corrolazine and 3[O2] and the energy difference between corresponding two complexes with different spin multiplicities.
Fig. 6. The predicted reaction pathway for the generation of cyclohexanol and the Mn(V)-oxo unit catalyzed by the 2D-O-Mncor nanomaterial in the spin-unpolarized state (relative energies and selected bond lengths are in kcal/mol and ?, respectively).
Fig. 7. Proposed reaction pathway for CH4 activation on the 2D-O-Mncor nanomaterial in the spin-unpolarized state (relative energies and selected bond lengths are in kcal/mol and ?, respectively).
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