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Green Chemistry with Supercritical CO2 and Enzymes

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Materials 2021, 14, 1786 8 of 20 Table 3. Geometric information (distances in Å and angles in degrees) for the D–H···O hydrogen bond interactions of SmCP1, {[Sm(Haip)(aip)(H2O)5]·4(H2O)}n, and TbCP1, {[Tb(Haip)(aip)(H2O)5]·4(H2O)}n, crystal structures. D–H···O O1W–H1W···O5Wiii O1W–H2W···O2 O2W–H3W···O9iv O2W–H4W···O7i O3W–H5W···O4i O3W–H6W···O8Wiv O4W–H7W···O8W O4W–H8W···O8v O5W–H9W···O7v O5W–H10W···O9W O6W–H11W···O8 O6W–H11W···O7Wvi O6W–H12W···O4 O7W–H14W···O3W O8W–H15W···O5 N1–H1···O6vii N1–H2···O6Wvii N1–H3···O2vii N2–H10···O6vii O8W–H16W···O6Wviii O9W–H17W···O7vi O9W–H18W···O5 O9W–H18W···O6 N2–H9···O7W SmCP1 d (H···O) 1.927(2) 1.814(2) 1.86(2) 1.99(2) 1.82(2) 1.837(2) 1.870(2) 1.706(2) 1.80(2) 1.83(2) 2.49(3) 2.13(2) 1.840(2) 1.88(2) 2.21(3) 1.96(2) 1.920(2) 1.95(2) 2.55(3) 1.92(2) 1.881(2) 2.56(3) 1.865(2) 2.28(3) d (D···O) 2.801(3) 2.669(3) 2.738(3) 2.846(3) 2.675(3) 2.722(3) 2.745(3) 2.603(3) 2.669(3) 2.693(3) 3.021(3) 2.951(4) 2.712(4) 2.809(4) 2.961(3) 2.808(4) 2.797(4) 2.784(4) 3.174(4) 2.777(4) 2.755(3) 3.130(3) 2.742(3) 3.041(4) ∠ (DHO) 173(3) 163(3) 172(3) 161(3) 160(4) 175(4) 179(4) 178(4) 169(3) 167(3) 120(3) 155(3) 171(4) 171(4) 146(3) 162(3) 176(3) 158(3) 130(3) 162(4) 170(3) 123(3) 172(3) 147(3) D–H···O O1W–H1W···O6 O1W–H2W···O9W O2W–H3W···O4iii O2W–H4W···O9Wiv O3W–H5W···O3iii O3W–H6W···O6W O4W–H7W···O6Wvi O4W–H8W···O3ii O5W–H9W···O7i O5W–H10W···O3Wvii O6W–H11W···O1 O6W–H11W···O2 O6W–H12W···O3v O7W–H13W···O1W O7W–H14W···O6x O9W–H17W···O1vi O9W–H18W···O8W O8W–H15W···O4ix O8W–H15W···O7W O8W–H16W···O6x N1–H1···O7W N1–H2···O2ix N2–H2A···O7vii N2–H2B···O8Wii TbCP1 d (H···O) 1.81(3) 1.84(2) 1.71(3) 1.86(2) 1.80(3) 1.82(3) 1.90(4) 2.04(4) 1.79(2) 1.92(2) 2.60(5) 1.83(2) 1.90(3) 1.93(2) 2.47(4) 2.12(4) 1.95(3) 2.59(9) 2.28(9) 1.90(8) 2.34(4) 2.54(7) 2.10 2.26 d (D···O) 2.662(6) 2.708(7) 2.603(7) 2.762(8) 2.677(7) 2.695(7) 2.726(7) 2.846(7) 2.661(6) 2.807(7) 3.124(7) 2.722(6) 2.757(6) 2.833(8) 3.271(9) 2.983(7) 2.790(8) 3.025(8) 2.922(9) 2.707(8) 3.048(9) 3.183(8) 2.776(7) 2.799(8) ∠ (DHO) 156(7) 170(6) 167(7) 178(6) 165(6) 161(6) 153(7) 149(7) 165(6) 170(6) 117(4) 167(6) 159(7) 169(8) 146(7) 160(7) 155(7) 124(9) 156(11) 172(8) 149(7) 143(7) 130 117 Symmetry transformations used to generate equivalent atoms: SmCP1 data: (i) −x+3/2, y−1/2, −z+3/2; (ii) −x+3/2, y+1/2, −z+3/2; (iii) −x+1, −y, −z+1; (iv) x+1, y, z; (v) −x+1/2, y−1/2, −z+3/2; (vi) x−1/2, −y+1/2, z−1/2; (vii) x+1/2, −y+1/2, z+1/2; TbCP1 data: (i) −x+3/2, y−1/2, −z+3/2; (ii) −x+3/2, y+1/2, −z+3/2; (iii) −x+5/2, y+1/2, −z+3/2; (iv) x+1, y, z; (v) x+1/2, −y+1/2, z+1/2; (vi) x−1, y, z; (vii) −x+2, −y+1, −z+2; (viii) −x+2, −y+1, −z+1; (ix) x−1/2, −y+1/2, z −1/2; (x) −x+1, −y+1, −z+1. The crystal structure of TbCP2 was determined in the monoclinic system, with space group P21/c, and revealed a 2D CP (coordination layered material) with general formula {[Tb(Haip)(aip)(H2O)2]·H2O}n. Comparatively to the previous CPs, SmCP1 and TbCP1, {[Tb(Haip)(aip)(H2O)5]·4H2O}n, this one revealed a significant decrease in the coordinated and uncoordinated water molecules: a total diminution of seven water molecules is verified. Furthermore, small variation in the reactant’s ratio led to a dimensionality increase: 1D for TbCP1 to 2D for TbCP2. The complete coordination environment for Tb center in the crystal structures of TbCP2 is shown in Figure 3a, being nine-coordinated {TbO9} and presents a geometry closer to a distorted mono-capped square antiprismatic (Figure 3b). Tb–O bond lengths were found between 2.290(3) Å and 2.661(3) Å, while the O–Tb–O angles ranged from 51.46(9)◦ to 155.01(10)◦ (more detailed information can be obtained in Table S3 of the Supplementary Material).

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