Metal-Organic Frameworks With Heterogeneous Structures Scrivener Publishing 100 Cummings Center, Suite 541J Beverly, MA 01915-6106 Publishers at Scrivener Martin Scrivener ([email protected]) Phillip Carmical ([email protected]) Metal-Organic Frameworks With Heterogeneous Structures Ali Morsali and Kayhaneh Berijani Department of Chemistry, Tarbiat Modares University, Tehran, Islamic Republic of Iran This edition first published 2021 by John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, USA and Scrivener Publishing LLC, 100 Cummings Center, Suite 541J, Beverly, MA 01915, USA © 2021 Scrivener Publishing LLC For more information about Scrivener publications please visit www.scrivenerpublishing.com. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or other- wise, except as permitted by law. 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Library of Congress Cataloging-in-Publication Data ISBN 978-1-119-79204-8 Cover image: Pixabay.com Cover design by Russell Richardson Set in size of 12pt and Minion Pro by Manila Typesetting Company, Makati, Philippines Printed in the USA 10 9 8 7 6 5 4 3 2 1 Contents List of Illustrations vii List of Tables xv List of Schemes xvii Preface xix Abbreviations xxi 1 Introduction: A Brief Introduction About Metal-Organic Frameworks 1 1.1 Metal-Organic Frameworks 1 1.2 Conclusion 8 References 8 2 Metal-Organic Frameworks Complexity 13 2.1 Perspectives on Complexity in MOFs 13 2.2 Conclusion 21 References 22 3 Complexity Based on Ligand—Part 1 27 3.1 Mixed Ligand 27 3.2 Conclusion 50 References 51 4 Complexity Based on Ligand—Part 2 57 4.1 Polytopic Linkers 57 4.2 Multi-Heterotopic Ligands 63 4.3 Conclusion 66 References 66 v vi Contents 5 Complexity Based on Metal Node 71 5.1 Mixed Metal 71 5.2 Multiple SBUs 81 5.3 Conclusion 92 References 92 6 Complexity Based on Chiral Framework—Part 1 105 6.1 Inherent Chirality 105 6.2 Direct Chirality 109 6.3 Conclusion 120 References 121 7 Complexity Based on Chiral Framework—Part 2 127 7.1 Chiral-Template Synthesis 127 7.2 Post-Synthesis 131 7.3 Conclusion 144 References 144 8 Complexity Based on Structural Defects 149 8.1 Inherent Defect 149 8.2 Designed Defect 154 8.3 Conclusion 161 References 162 9 Complexity Based on Heterogeneous Pores 171 9.1 Heterogeneous Pores 171 9.2 Conclusion 178 References 179 10 Complexity Based on Mixed MOFs 185 10.1 Complex Mixed MOFs 185 10.2 Conclusion 192 References 193 Index 199 List of Illustrations Figure 1.1 Simple description of 3D MOF chemistry. 2 Figure 1.2 Some examples of metal nodes, organic linkers, and MOFs (definition of atom types: blue: metal; red: oxygen; purple: nitrogen; gray: carbon; and green: chlorine). 3 Figure 1.3 Some examples of MOFs synthesis methods. 7 Figure 2.1 Simple language to understand concept of complexity. 14 Figure 2.2 Overview of this book based on the effective factors in the construction MOFs with heterogeneous structures. 16 Figure 2.3 Classification of complexity key factors in MOFs (further details in text). 16 Figure 2.4 A cost-effective mixed-metal mixed-ligand MOF, which exhibits highly efficient photocatalytic H 2 generation. 19 Figure 2.5 D efective linker concept for defect-engineered MOFs. 20 Figure 3.1 A photocatalyst MOF with three different ditopic linkers. 33 Figure 3.2 S tructural analyses of a MOF-based photocatalyst with three different ditopic linkers. (a) Percent of BPDC-(HN ) incorporation 2 2 in ReMOF-NH (X%). (b) PXRD patterns: 2 Re-MOF, Re-MOF-NH (33%), Re-MOF-NH 2 2 (80%) and Re-MOF simulated pattern. (c) SEM images: Re-MOF-NH (33%) and Re-MOF-NH 2 2 (80%). (d) N adsorption isotherms: Re-MOF, 2 Re-MOF-NH (33%) and Re-MOF-NH (80%). 2 2 vii viii List of Illustrations (e) IR spectra: Re-MOF, Re-MOF-NH (33%) 2 and Re-MOF-NH (80%). 34 2 Figure 3.3 (a) Copper-phosphonate CBU polyhedral. Octahedral Cu1 and square pyramidal Cu2: dark blue and light blue, respectively. PO C 3 tetrahedral: green. (b) The original structure of the considered isoreticular MOF. 36 Figure 3.4 S chematic representations of the happened processes in MOF with increased porosity. (a and b) Organic linker installation and linker labilization, respectively. (c) The produced hierarchically porous MOF through linker labilization (top). UV-vis analysis of linker exchange process. (a) Concentration of AZDC in supernatant as a function of incubation time in CBAB solutions with different concentrations. (b) Relationship between CBAB exchanged/ CBAB added, exchange ratio, and CBAB molarity. (c) PCN-160 crystals images with various exchange ratios. 38 Figure 3.5 S chematic representations of construction mechanism. (a) Formed micropores, (b and c) small and large mesopores, and (d) pores size distribution of the considered MOF (PCN-160- 34%) in the presence of acid in different amounts. (Top) (a) Representation of one kind of MOF in the presence of enzyme. (b) relative activity of the considered MOFs in the oxidative reaction of ABTS (2,2ʹ-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid)) and o-PDA (o-phenylenediamine). 40 Figure 3.6 O ne kind of mixed-valence RuII/III MOF with mixed-linker. 42 Figure 3.7 Olefin hydrogenation mechanism. 42 Figure 3.8 Zeolite-like MOFs based on mixed linkers. 44 Figure 3.9 A mixed-ligand MOF with two ligands BTC (benzene-1,3,5-tricarboxylate) and BTRE (1,2-bis(1,2,4-triazol-4-yl)-ethane). 44 List of Illustrations ix Figure 3.10 S tepwise preparation of {[Cu (CDC) (4,4ʹ- 4 4 bipy)(H O) ] } ·xS. Copper: aqua; oxygen: red; 2 2 3 n nitrogen: blue; carbon; black. Hydrogen atoms have not been shown (top). Synthesis of the isostructural porphyrinic MOFs and obtained crystals photographs (bottom). 46 Figure 3.11 A DES-1: (a) coordination environment around Zn(II); (b) and (c) [Zn (COO) ] SBU in 1D 2 2 metal-carboxylate chain and double lined 2D network, respectively; (d) ABAB manner interlayer with lattice H O. 47 2 Figure 3.12 A DES-2: (a) coordination environment around Cd(II); (b) and (c) [Cd (COO) ] SBU in 1D 2 2 metal-carboxylate chain and double lined 2D network, respectively; (d) Offset stacked 2D layers with the lattice H2O and π···π stacked L. 47 Figure 3.13 D irect synthesis mixed-ligands MOF film, RuB- RuTB-UiO-67/TiO /FTO through solvothermal 2 method. 50 Figure 4.1 Some of the tritopic linkers. 58 Figure 4.2 The symmetry in organic linker. Tetratopic linkers with (a) symmetry C2 and (b) h symmetry C. 59 s Figure 4.3 Some of the tetratopic linkers. 60 Figure 4.4 A mixed-ligand MOF with tetratopic organic linkers. 61 Figure 4.5 Some of the multi-topic linkers. 62 Figure 4.6 A kind of MOF with multi-hetero topic organic linker. 64 Figure 4.7 ( a) Cu(II) Coordination environment. Symmetric nodes: (i) y, 1 - x, 1 - z; (ii) y, x, 1 – z; (iii) 1 - y, x, 1 – z; (iv) 1 – x, y, z; (v) x, 1 – y, z; (vi) -x, 1 – y, z; (vii) -x, y, z; (viii) y, x, -z; (ix) -y, x, -z; (x) y, -x, -z. (b) Distorted truncated octahedron cage: (trinuclear + tetranuclear) SBUs. (c) Illustration of three dimensional porous framework in the considered MOF. 65 Figure 5.1 Two synthesis strategies to create MMʹ-MOFs. 72