نتایج جستجو برای: 1 definiteness 2 specificity 3 acquisition 3 interpretability hypothesis 4 persian learners
تعداد نتایج: 5161761 فیلتر نتایج به سال:
Journal:
:Acta Crystallographica Section E Structure Reports Online
2010
Journal:
:Acta Crystallographica Section E Structure Reports Online
2008
Journal:
:Acta Crystallographica Section E Structure Reports Online
2009
Journal:
:Acta Crystallographica Section E Structure Reports Online
2009
Journal:
:iranian journal of chemistry and chemical engineering (ijcce)
2005
ali kakanejadifard
sayed morteza farnia
issa kakoiedinaki
compound n2, n3, n7, n8, 1, 4, 5, 6, 9, 10-decaphenyltetradecahydrodipyrazino [2, 3-b: 2, 3-e] pyrazine-2, 3, 7, 8-tetraamine (4) was prepared by condensation of 1, 1′, 2, 2′-tetrakis (phenylamino) ethane (1d) and glyoxal in etoh or i-proh. also, reaction of 1d with glyoxal in equimolare in etoh resulted 5,6-bis (ethoxy)-n2, n3, 1, 4-tetraphenylhexahydro-2, 3-pyrazinediamine (5). the natures of...
Journal:
:Acta Crystallographica Section E Structure Reports Online
2011
Journal:
:Acta Crystallographica Section E Structure Reports Online
2012
Journal:
:Acta Crystallographica Section E Structure Reports Online
2012
Journal:
:Acta Crystallographica Section E Structure Reports Online
2009
Journal:
:Acta Crystallographica Section E Structure Reports Online
2010
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