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      <image:title>Our Team - Dr. Karah E. Knope</image:title>
      <image:caption>Provost’s Distinguished Associate Professor, Georgetown University Karah was born and raised in Michigan. She attended Lake Forest College (IL) where she earned her B.A. in Chemistry. During her time at Lake Forest College, Karah performed summer and honors thesis research in a synthetic inorganic chemistry group – this piqued her interest in inorganic chemistry and crystal chemistry. However, unconvinced that it was inorganic chemistry and not research itself that she wanted to pursue, she headed west to work in a psychiatric research lab at Cedars-Sinai Medical Center following graduation. Drawn back to chemistry, in 2003 she made a cross-country trip to the University of Vermont, where she spent the next two years studying the blood coagulation cascade in a biochemistry research group. The conclusion from these experiences – Inorganic Chemistry was it! In 2005, she began her graduate work at The George Washington University (DC), where she worked with Christopher Cahill. Her thesis focused on the synthesis and characterization of hexavalent uranium coordination polymers. After receiving her Ph.D. in 2010, she began her postdoctoral work in the Heavy Elements Chemistry and Separation Science group at Argonne National Laboratory, where she examined the chemical behavior of Th, U, and Pu. In 2012 she was promoted to an Assistant Scientist. Her love of teaching and those student “aha” moments brought her back to academia.</image:caption>
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      <image:caption>Pictured, top row, left to right: Morgan McDonald, Gunjan Gupta, Maddie Shore, Sara Auffant, Karah Knope, Meiling Spelic, Jordan Schuman; bottom row, left to right: Frenio Redeker, Tom McCusker, Alice Lulich, Anamar Blanes, Sabrina Jackson, Dhanya Chasmawala, Neah Davis, Lulio Sanz</image:caption>
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    <loc>https://knopelab.com/contact-us</loc>
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    <lastmod>2023-04-07</lastmod>
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  <url>
    <loc>https://knopelab.com/faqs</loc>
    <changefreq>daily</changefreq>
    <priority>0.75</priority>
    <lastmod>2025-12-08</lastmod>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/60ae4f4f3b5cfd0165026097/0fded43f-e72f-406e-ab43-9537df3d749f/Tom+Nd+dimer+paper.png</image:loc>
      <image:title>Publications - 65. McCusker, T. L.; Schnable, D.; Karapala, V. K.; Arachchige, A. K. K.; Tahari, E.; Bertke, J. A.; Carter, K. P.; Knope, K. E.*; Surbella III, R. G.* Near-IR Luminescence Tuning in a Series of Chalcogenophene Carboxylate-Decorated Neodymium Dimers. Cryst. Growth Des., 2025. DOI: 10.1021/acs.cgd.5c00837</image:title>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/60ae4f4f3b5cfd0165026097/79b0485c-276b-42fd-831f-f948d1cd32a3/tomhydrolysispaper.jpeg</image:loc>
      <image:title>Publications - 64. McCusker, T. L.; Roseborough, A.; McDonald, M. A.; Jackson, S. A.; Redeker, F. A.; Nyman, M.; Knope, K. E.* Developing Lanthanide-Nitrate Cluster Chemistry toward Rare Earth Separations. Inorg. Chem., 2025. DOI: 10.1021/acs.inorgchem.5c01730</image:title>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/60ae4f4f3b5cfd0165026097/d6f27e9f-7539-4a90-bfaa-0ef54f68b2d5/inocaj.2025.64.issue-29.xlargecover.jpg</image:loc>
      <image:title>Publications - 63. Shore, M. C.; Wacker, J. N.; Miro, P.; Bertke, J. A.; Knope, K. E.*. Alkali Counterion-Dependent Crystallization of Uranium(IV)–Chloro Structural Units. Inorganic Chemistry, 2025, 64(29), 14799-14809. DOI: 10.1021/acs.inorgchem.5c00822</image:title>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/60ae4f4f3b5cfd0165026097/7e3b5665-1bc7-41ac-975e-2a353338988e/Morgan+Ln+EuJIC+try+2.jpg</image:loc>
      <image:title>Publications - 62. McDonald, M. A.; Redeker, F. A.; Akuburio, P.; Miro, P.; Bertke, J. A.; Jorabchi, K.; Knope, K. E.*. Lanthanide Differentiation Using Acetylacetonate: Insights into the Solution Speciation and Crystallization Behavior of Homo- and Heterometal Complexes. EJIC, 2025, 28(16), e202500171. DOI: 10.1002/ejic.202500171</image:title>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/60ae4f4f3b5cfd0165026097/5c7615fe-93b0-4d82-8b47-0b096ef7bae7/Tom+Actinide+Paper.jpg</image:loc>
      <image:title>Publications - 61. McCusker, T. L.; Vanagas, N. A.; Szymanowski, J. E. S.; Surbella, R. G.; Bertke, J. A.; Arteaga, A.*; Knope, K. E.*. Elucidating trends in synthesis and structural periodicity in a series of tetravalent actinide-oxo hexamers. CrystEngComm, 2025, 27, 507-515. DOI: 10.1039/D4CE01042F</image:title>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/60ae4f4f3b5cfd0165026097/97e73b85-87b1-4766-af0f-9557b010258c/Anamar%27s+52+paper.gif</image:loc>
      <image:title>Publications - 60. Blanes-Díaz, A.; Wacker, J. N.; Szymanowski, J. E. S.; Bertke, J. A.; Knope, K. E*. Isolation of a chloride-capped cerium polyoxo nanocluster built from 52 metal ions. Chem. Commun., 2024, 60, 12185-12188. DOI: 10.1039/D4CC03144J</image:title>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/60ae4f4f3b5cfd0165026097/0a056c9d-a5d2-420e-a4a9-c38d0783f787/stoshtoc.gif</image:loc>
      <image:title>Publications - 59. Shaw, T. E.; Jones, Z. R.; Adelman, S. L.; Anderson, N. H.; Bowes, E. G.; Bauer E.D.; Dan, D.; Klouda, J.; Knope, K.E.*; Kozimor, S.A.*; MacInnes, M.M.; Mocko, V.; Rocha, F. R.; Root, H. D.; Stein, B. W.; Thompson, J. D.; Wacker J. N. [PuCl3{CoCp[OP(OEt)2]3: Transuranic Elements Entering the Field of Heterometallic Molecular Chemistry. Chem. Sci., 2024, 15, 12754-12764. DOI: 10.1039/D4SC01767F</image:title>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/60ae4f4f3b5cfd0165026097/82c68294-18f9-42f9-8e0e-f0daf8d4479e/images_large_ic4c00606_0009.jpeg</image:loc>
      <image:title>Publications - 58. Marwitz, A. C.; Dutta, A. K.; Conner, R. L.; Sanz, L. A.; Jacobsohn, L. G.; Knope, K. E.* Unlocking Arene Phosphorescence in Bismuth–Organic Materials . Inorganic Chemistry 2024, 63 (24), 11053-11062. DOI: 10.1021/acs.inorgchem.4c00606</image:title>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/60ae4f4f3b5cfd0165026097/4d38c3f5-c89a-4046-97e1-c206dc41d00a/Screenshot+2024-02-14+at+10.06.22+AM.png</image:loc>
      <image:title>Publications - 57. Shore, M. C.; Nicholas, A. D.; Vasiliu, M.; Edwards, K. C.; de Melo, G. F.; Bertke, J. A.; Dixon, D. A.; Knope, K. E.* Structural Chemistry of Penta- and Hexanitrato Thorium(Iv) Complexes Isolated Using N–H Donors. CrystEngComm 2024, 26, 1380-1398. DOI: 10.1039/D3CE01319G.</image:title>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/60ae4f4f3b5cfd0165026097/ed476fb7-6205-4fc6-b4cc-9c762a0242a7/Alex.jpeg</image:loc>
      <image:title>Publications - 56. Marwitz, A. C.; Nicholas, A. D.; Magar, R. T.; Dutta, A. K.; Swanson, J.; Hartman, T.; Bertke, J. A.; Rack, J. J.; Jacobsohn, L. G.; Knope, K. E.* Back in Bismuth: Controlling Triplet Energy Transfer, Phosphorescence, and Radioluminescence via Supramolecular Interactions. J. Mater. Chem. C 2023, 11 (42), 14848–14864. DOI: 10.1039/D3TC02040A.</image:title>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/60ae4f4f3b5cfd0165026097/861a9077-01d5-4860-95b9-499041c0f2bb/toc.jpeg</image:loc>
      <image:title>Publications - 55. Li, B.; Jones, Z. R.'; Eiroa-Lledo, C.; Knope, K. E.*; Mocko, V.; Stein, B. W.; Wacker, J. N.; Kozimor, S. A.; Batista, E. R.; and Yang , P. Inorganic Chemistry 2023 62 (27), 10528-10538. DOI: 10.1021/acs.inorgchem.2c03982</image:title>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/60ae4f4f3b5cfd0165026097/19a2961c-f7bb-4f57-8e12-b90a49f709ff/anamar+TOC.jpeg</image:loc>
      <image:title>Publications - 54. Blanes-Díaz, A.; Shohel, M.; Rice, N. T.; Piedmonte, I.; McDonald, M. A.; Jorabchi, K.; Kozimor, S. A.; Bertke, J. A.; Nyman, M.; and Knope, K. E.* Inorganic Chemistry 2024 63 (21), 9406-9417. DOI: 10.1021/acs.inorgchem.3c02141</image:title>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/60ae4f4f3b5cfd0165026097/775ea51c-d1d9-40b2-b756-c333efd75a7c/Screen+Shot+2023-04-07+at+11.59.14+AM.png</image:loc>
      <image:title>Publications - 53. Marwitz, A. C.; Dutta, A. K.; McDonald, M. A.; and Knope, K. E.* Efficient Europium Sensitization via Low-Level Doping in a 2-D Bismuth-Organic Coordination Polymer. Crystal Growth &amp; Design 2023, 23(5), 3330-3337. DOI: 10.1021/acs.cgd.2c01475</image:title>
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      <image:title>Publications - 52. Stewart Jr O; Marwitz AC; Swanson J; Bertke JA; Hartman T; Monteiro J; de Bettencourt-Dias A; Knope KE; Stoll SL. Lanthanide Luminescence and Thermochromic Emission from Soft-Atom Donor Dichalcogenoimidodiphosphinate Ligands. Inorganic Chemistry, 2022. DOI: 10.1021/acs.inorgchem.2c02260</image:title>
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      <image:title>Publications - 51. Blanes Díaz, A.; Stewart, O.; Vasiliu, M.; Nicholas, A.; Murray, A. V; Shore, M. C.; Dixon, D. A.; Knope, K. E*. Th(IV) Bromide Complexes: A Homoleptic Aqua Ion and a Novel Th(H2O)4Br4 Structural Unit. Cryst. Growth Des. 2022, 22(7), 4375-4381. https://doi.org/10.1021/acs.cgd.2c00353.</image:title>
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      <image:title>Publications - 50. Wacker JN, Ditter AS, Cary SK, Murray AV, Bertke JA, Seidler GT, Kozimor SA, Knope KE.* Reactivity of a Chloride Decorated, Mixed Valent CeIII/IV38-Oxo Cluster. Inorganic Chemistry. 2022, 61(1), 193-205. DOI: 10.1021/acs.inorgchem.1c02705.</image:title>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/60ae4f4f3b5cfd0165026097/1648066128553-OJPYVUDBMXVPQVS30MJD/Screen+Shot+2022-03-23+at+4.08.12+PM.png</image:loc>
      <image:title>Publications - 49. Adcock AK, Marwitz AC, Sanz LA, Ayscue RL, Bertke JA, Knope KE*. Synthesis, Structural Characterization, and Luminescent Properties of Heteroleptic Bismuth-Organic Compounds. CrystEngComm 2021, 23, 8183-8197. DOI:10.1039/D1CE01242H</image:title>
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      <image:title>Publications - 48. MacInnes M, Jones Z, Anderson N, Eiroa-Lledo C, Knope KE; Livshits M, Kozimor S, Mocko V, Rein F, Stein B, Wacker J. Molten Salts to Probe Outer-Coordination Sphere Effects on Lanthanide(III)/(II) Electron-Transfer Reactions. Dalton Transactions 2021, 50, 15696-15710. DOI: 10.1039/D1DT02708E.﻿</image:title>
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      <image:title>Publications - 47.       Marwitz AC, Nicholas AD, Breuer LM, Bertke JA, Knope KE.* Harnessing bismuth coordination chemistry to achieve bright, long-lived organic phosphorescence. Inorganic Chemistry, 2021. DOI: 10.1021/acs.inorgchem.1c02748.</image:title>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/60ae4f4f3b5cfd0165026097/1635514282474-H2VW6DRGDA52LJMLZAC5/lee+paper.gif</image:loc>
      <image:title>Publications - 46.       Ayscue RL, Vallet V, Bertke JA, Réal F,* Knope KE*. Structure-Property Relationships in Photoluminescent Bismuth Halide Organic Hybrid Materials. Inorganic Chemistry, 2021, 60, 13, 9727-9744. DOI: 10.1021/acs/inorgchem.1c01025.</image:title>
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      <image:title>Publications - 45.       Wacker JN; Nicholas AD; Vasiliu M; Marwitz AC; Bertke JA; Dixon DA; Knope KE.* Impact of Noncovalent Interactions on the Structural Chemistry of Thorium(IV)–Aquo–Chloro Complexes. Inorganic Chemistry, 2021, 60, 9, 6375-6390. DOI: 10.1021/acs.inorgchem.1c00099.</image:title>
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      <image:title>Publications - 44.       Murray AV, Wacker JN, Bertke JA, Knope KE.* Synthesis, Characterization, and Solid-State Structural Chemistry of Uranium(IV) Aliphatic Dicarboxylates. Crystal Growth &amp; Design, 2021, 21, 4, 2429-2444. DOI: 10.1021/acs.cgd.1c00042.</image:title>
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      <image:title>Publications - 43.       Jones Z; Livshits M; White F; Dalodiere E; Kerlin (Ferrier), M; Lilley L; Knope KE; Kozimor SA;* Mocko V; Stein B; Wacker JN; Woen DH. Advancing Understanding of Actinide(III) (Ac, Am, Cm) Aqueous Complexation Chemistry. Chemical Science, 2021, 12, 5638-5654. DOI: 10.1039/D1SC00233C.</image:title>
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      <image:title>Publications</image:title>
      <image:caption>Knope KE, Cahill CL. “Uranyl phosphonates: A structural survey,” in Metal Phosphonate Chemistry: From Synthesis to Applications. Clearfield A, Demadis KD, Eds.; RSC Publishing: Cambridge, 2011</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://knopelab.com/bismuth</loc>
    <changefreq>daily</changefreq>
    <priority>0.75</priority>
    <lastmod>2023-04-10</lastmod>
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  <url>
    <loc>https://knopelab.com/new-page</loc>
    <changefreq>daily</changefreq>
    <priority>0.75</priority>
    <lastmod>2021-11-15</lastmod>
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      <image:title>Research</image:title>
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      <image:title>Research</image:title>
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  </url>
  <url>
    <loc>https://knopelab.com/actinide</loc>
    <changefreq>daily</changefreq>
    <priority>0.75</priority>
    <lastmod>2023-04-10</lastmod>
  </url>
  <url>
    <loc>https://knopelab.com/crystal-growing-comp</loc>
    <changefreq>daily</changefreq>
    <priority>0.75</priority>
    <lastmod>2021-10-28</lastmod>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/60ae4f4f3b5cfd0165026097/1635450336583-GYJDYZ7HUW52JNLC2HMV/Screen+Shot+2021-10-13+at+11.23.43+AM.png</image:loc>
      <image:title>Crystal growing comp. - The U.S. Crystal Growing Competition was founded by Prof. Jason Benedict (Univ. Buffalo) in 2013. It is an annual event that coincides with Chemistry Week and provides students, teachers, and parents an opportunity to try out their crystal growing skills. No prior experience is needed, we just want you to have fun and “crystallize” your excitement for science. And crystals are just cool! If you are interested in learning more, please visit: https://www.uscrystalgrowingcompetition.org/</image:title>
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      <image:title>Crystal growing comp. - What is our role? We provide support for those interested in the event, help send supplies, and participate in the judging process. What judging? There are prizes! Please feel free to contact Prof. Knope @ kek44@georgetown.edu with any questions you may have.</image:title>
    </image:image>
  </url>
  <url>
    <loc>https://knopelab.com/outreach-2</loc>
    <changefreq>daily</changefreq>
    <priority>0.75</priority>
    <lastmod>2021-11-09</lastmod>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/60ae4f4f3b5cfd0165026097/1635450724447-JJ8KPCAX9EZQPAFEO89P/Local+community_Geodes.jpeg</image:loc>
      <image:title>Local Community - The Knope group has been working with teachers at MVCS to develop hands-on activities for K-5 students that integrate the research interests of the Knope group with the curricula needs of Alexandria Public Schools 4th and 5th grades. We have delivered the following activities:  “Fun with Materials”, “Interaction of Light with Matter”,         “Natural Resources: Let’s Talk Uranium”</image:title>
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  </url>
  <url>
    <loc>https://knopelab.com/science-nights</loc>
    <changefreq>daily</changefreq>
    <priority>0.75</priority>
    <lastmod>2021-10-28</lastmod>
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      <image:loc>https://images.squarespace-cdn.com/content/v1/60ae4f4f3b5cfd0165026097/1635451066622-FDYCNKIT95E3R5M17BQ5/Local+Science+Night.jpeg</image:loc>
      <image:title>Science Nights - USA Science and Engineering Festival. The USA Science and Engineering Festival is the largest and only national science festival. The mission of the festival is to “stimulate and sustain the interest of our nation’s youth in STEM by producing and presenting compelling, exciting, and educational STEM events and programs.”  In the past, we have worked with Georgetown undergraduates as well as national organizations (i.e. American Chemical Society, American Nuclear Society) to deliver hands-on activities related to chemistry and nuclear science and engineering. Interested in learning more, visit https://usasciencefestival.org/</image:title>
      <image:caption>Local Science Nights. Prior to the COVID-19 pandemic, the Knope group participated in the Alexandria City Public School Global Science night. We developed activities focused on luminescent materials and radioactivity. Our goal is simple: get kids excited about STEM.</image:caption>
    </image:image>
  </url>
  <url>
    <loc>https://knopelab.com/archive</loc>
    <changefreq>daily</changefreq>
    <priority>0.75</priority>
    <lastmod>2025-10-22</lastmod>
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