{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T05:02:03Z","timestamp":1790226123520,"version":"4.1.0"},"reference-count":79,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T00:00:00Z","timestamp":1790121600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T00:00:00Z","timestamp":1790121600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Angew Chem Int Ed"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    We report the design and development of a heterogeneous NNP\u2010pincer ligand, 6\u2010((diisopropylphosphaneyl)amino)\u2010(2,2\u2032\u2010bipyridine), which is integrated within a porous zirconium metal\u2013organic framework (mNNP\u2010UiO\u201067) to synthesize highly active earth\u2010abundant metal catalysts for alkane functionalization. The mNNP\u2010UiO\u201067 MOF\u2010supported mononuclear iron(II)\u2010dihydride (mNNP\u2010UiO\u2010FeH\n                    <jats:sub>2<\/jats:sub>\n                    ) exhibits high efficiency in catalyzing selective monoborylation of methane and ethane. mNNP\u2010UiO\u2010FeH\n                    <jats:sub>2<\/jats:sub>\n                    \u2010catalyzed borylation of methane using pinacolborane (HBpin) produces CH\n                    <jats:sub>3<\/jats:sub>\n                    Bpin in 76% yield, while significantly suppressing the formation of thermodynamically favored over\u2010borylated products. The catalyst remains active over six recycling cycles, achieving a cumulative turnover number (TON) of 10,793, a methane utilization efficiency of 5.5%, and a space\u2010time productivity of 13.5 gL\n                    <jats:sup>\u22121<\/jats:sup>\n                    h\n                    <jats:sup>\u22121<\/jats:sup>\n                    . The catalyst is also effective for ethane activation, yielding 36% of C\n                    <jats:sub>2<\/jats:sub>\n                    H\n                    <jats:sub>5<\/jats:sub>\n                    Bpin with 100% selectivity and a TON of 774. In stark contrast, the analogous homogeneous control is barely active, giving a TON of only 8 in methane borylation due to its rapid decomposition. Experimental results indicate that the stabilization of NNP\u2010Fe\n                    <jats:sup>II<\/jats:sup>\n                    H\n                    <jats:sub>2<\/jats:sub>\n                    active sites and the catalytic intermediates such as NNP\u2010Fe\n                    <jats:sup>0<\/jats:sup>\n                    and NNP\u2010Fe\n                    <jats:sup>II<\/jats:sup>\n                    H(Bpin) within the MOF through active\u2010site isolation is crucial for the remarkably high activity and selectivity. Mechanistic studies suggest the\n                    <jats:italic>\u03c3<\/jats:italic>\n                    \u2010bond metathesis between the Fe\u2500Bpin bond of NNP\u2010Fe\n                    <jats:sup>II<\/jats:sup>\n                    H(Bpin) and the C\u2500H bond of methane as turnover\u2010limiting in the catalytic cycle.\n                  <\/jats:p>","DOI":"10.1002\/anie.5648702","type":"journal-article","created":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T04:30:06Z","timestamp":1790224206000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Metal\u2013Organic Framework\u2010Confined Iron Pincer Complex for Highly Efficient and Selective Borylation of Methane and Ethane"],"prefix":"10.1002","author":[{"given":"Bitan","family":"Sardar","sequence":"first","affiliation":[{"name":"Department of Chemistry Indian Institute of Technology Delhi  New Delhi 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