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CH - Direktori File UPI

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NMR<br />

Senyawa <strong>CH</strong> 3 X<br />

Unsur X<br />

Deshielding oleh unsur elektronegatif<br />

Ketergantungan geseran kimia <strong>CH</strong> 3 X pada unsur X<br />

Keelektronegatifan X<br />

Geseran Kimia δ<br />

Paling<br />

tidak<br />

terperisai<br />

<strong>CH</strong> 3 F <strong>CH</strong> 3 OH <strong>CH</strong> 3 Cl <strong>CH</strong> 3 Br <strong>CH</strong> 3 I <strong>CH</strong> 4 (<strong>CH</strong> 3 ) 4 Si<br />

F O Cl Br I H Si<br />

4.0 3.5 3.1 2.8 2.5 2.1 1.8<br />

4.26 3.40 3.05 2.68 2.16 0.23 0<br />

deshielding meningkat sejalan<br />

dengan peningkatan<br />

keelektronegatifan atom X<br />

TMS

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