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Date: 5-8-2019
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Date: 5-8-2019
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Date: 13-8-2018
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Correlations Between Structure and Chemical Shifts
Protonc chemical shifts are very valuable for the determination of structures, but to use the shifts in this way we must know something about the correlations that exist between chemical shift and structural environment of protons in organic compounds. The most important effects arise from differences in electronegativity, types of carbon bonding, hydrogen bonding, and chemical exchange.
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دخلت غرفة فنسيت ماذا تريد من داخلها.. خبير يفسر الحالة
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ثورة طبية.. ابتكار أصغر جهاز لتنظيم ضربات القلب في العالم
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قسم الشؤون الفكرية ينظم ندوة ثقافية بذكرى فاجعة هدم قبور أئمة البقيع (عليهم السلام)
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