"superalkali" meaning in English

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  "etymology_text": "From super- + alkali.",
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      "form": "superalkalis",
      "tags": [
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          "ref": "2016, Ambrish Kumar Srivastava, Neeraj Misra, “Competition between Alkalide Characteristics and Nonlinear Optical Properties in OLi3-M-Li3O (M=Li, Na and K) Complexes”, in arXiv:",
          "text": "We have proposed a new class of alkalides by sandwiching alkali atoms (M) between two Li3O superalkali clusters at MP2/6-311++G(d,p) level.",
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        "Any material that has a very small electron affinity"
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        "(chemistry) Any material that has a very small electron affinity"
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  "word": "superalkali"
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  "etymology_text": "From super- + alkali.",
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          "text": "We have proposed a new class of alkalides by sandwiching alkali atoms (M) between two Li3O superalkali clusters at MP2/6-311++G(d,p) level.",
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