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X-ORIGINAL-URL:https://kalamazooacs.org
X-WR-CALDESC:Events for Kalamazoo Section of the American Chemical Society
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TZID:UTC
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TZOFFSETFROM:+0000
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DTSTART:20200101T000000
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BEGIN:VEVENT
DTSTART;TZID=UTC:20211016T000000
DTEND;TZID=UTC:20211016T235959
DTSTAMP:20260608T114852
CREATED:20210308T233740Z
LAST-MODIFIED:20210817T160156Z
UID:20357-1634342400-1634428799@kalamazooacs.org
SUMMARY:Chemistry Day at Kalamazoo Valley Museum (Virtual)
DESCRIPTION:“Fast or Slow\, Chemistry Makes It Go\,”  Chemistry Day will be virtual once again this year. Look for more details in the September Newsletter
URL:https://kalamazooacs.org/events/chemistry-day-at-kalamazoo-valley-museum/
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BEGIN:VEVENT
DTSTART;TZID=UTC:20211018T080000
DTEND;TZID=UTC:20211024T170000
DTSTAMP:20260608T114852
CREATED:20211018T211238Z
LAST-MODIFIED:20211018T211238Z
UID:20824-1634544000-1635094800@kalamazooacs.org
SUMMARY:SciFest 2021\, virtual expo for K-12 (STEM)
DESCRIPTION:Register: https://scifest.vfairs.com/ \n\n\n\nFree Virtual STEM Expo for K-12 Students\, Educators and FamiliesOctober 18 – 24\, 2021
URL:https://kalamazooacs.org/events/scifest-2021-virtual-expo-for-k-12-stem/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20211018T180000
DTEND;TZID=UTC:20211018T193000
DTSTAMP:20260608T114852
CREATED:20210308T233603Z
LAST-MODIFIED:20210810T174955Z
UID:20355-1634580000-1634585400@kalamazooacs.org
SUMMARY:October 2021 - KACS Executive Meeting
DESCRIPTION:Executive Committee Meeting
URL:https://kalamazooacs.org/events/october-2021-kacs-executive-meeting/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20211021T120000
DTEND;TZID=UTC:20211021T130000
DTSTAMP:20260608T114852
CREATED:20210910T193515Z
LAST-MODIFIED:20211018T210844Z
UID:20797-1634817600-1634821200@kalamazooacs.org
SUMMARY:October 2021 – Seminar
DESCRIPTION:Dr. Gellert Mezei\, Removal of anionic contaminants from water using nanojars \n\n\n\n \n\n\n\nZoom Event –  Email edwardwthomas@gmail.com for an invite to event \n\n\n\nSelective binding and transport of highly hydrophilic anions is ubiquitous innature\, as anion binding proteins can differentiate between similar anions withover a million-fold efficiency. While comparable selectivity has occasionally beenachieved for certain anions using small\, artificial receptors\, the selective bindingof certain anions\, such as sulfate in the presence of carbonate\, remains a verychallenging task. Nanojars have emerged as a new class of anion binding andextraction agents of unparalleled efficiency. Nanojars are neutral\, nano-sizedtoroidal copper(II)-hydroxide/pyrazolate assemblies comprised of a series ofhomologous oligomerization isomers of the formula [anion{Cu(OH)(pz)} n ] (Cu n ; n= 26−36; pz = pyrazolate\, C 3 H 3 N 2 – )\, which strongly bind hydrophilic anions such ascarbonate\, sulfate and phosphate\, as well as the toxic anions arsenate andchromate. By using a combination of single-crystal X-ray crystallography\,electrospray-ionization mass spectrometry (ESI-MS) and 1 H-NMR spectroscopy\, ithas been determined that the various Cu n nanojars are based on a combination ofthree or four [Cu(OH)(pz)] m metallamacrocycles (m = 6−14\, except 11)\, tightly heldtogether by a network of hydrogen bonding and Cu-O interactions.Two challenging problems in the field of anion binding and extraction havebeen successfully addressed by using nanojars as extraction agents. First\, nanojarsare able to extract even the most hydrophilic anions\, such as carbonate andsulfate\, from water into aliphatic hydrocarbons. Second\, nanojars are able toselectively extract strongly hydrophilic anions in the presence of less hydrophilicanions. Moreover\, rigidification of the nanojar outer shell by tethering pairs ofpyrazole ligands together leads to further increase of selectivity. Nanojarsprepared with tethered pyrazole ligands of the formula pz(CH 2 ) x pz selectively bindeither carbonate (when x = 2) or sulfate anions (when x = 3). Anion extractionstudies have shown that by using nanojars\, the concentration of arsenate andchromate ions in aqueous media can be lowered below EPA-permitted levels indrinking water. Furthermore\, nanojars can be used for the selective sequesteringof CO 2 from the air in the presence of other atmospheric gases by conversion tocarbonate.
URL:https://kalamazooacs.org/events/october-2021-seminar/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=UTC:20211023T080000
DTEND;TZID=UTC:20211023T080000
DTSTAMP:20260608T114852
CREATED:20211018T211421Z
LAST-MODIFIED:20211018T211544Z
UID:20826-1634976000-1634976000@kalamazooacs.org
SUMMARY:Mole Day
DESCRIPTION:Happy Mole Day: 6.022×10^23
URL:https://kalamazooacs.org/events/mole-day/
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