Learn about our remote access options, Institute of Physical Chemistry, Federal School of Technology, CH‐1015 Lausanne, Switzerland. Check your list of mass differences created in Step 3. endobj
%PDF-1.5
Working off-campus? Luckily, singularly halogenated alkanes have easily identifiable mass spectra (see iodobutane spectra below). Learn about our remote access options, Institute of Physical Chemistry, Federal School of Technology, CH‐1015 Lausanne, Switzerland. m��iT`�y��������)��!��� endobj
Olefinic Fragments—What is their Structure? ���ɑ2W������%[�eo���)UN|�`.uFs�6D�{�w?�����0/a�`��笚�s~��#�Ql��F$@߆��M��-s4�����q��~�����Wt����ı!�ּƴ�u��r��!mi��N;W����{3X�r�x�XbH:�D}E04���n��R�����O1��?k;���'�����v���ĕ�굮a��%k�@���fT6��W.�&�_�*@)����D��f@�m�ü�ݦ#��ʼ��eGU��X�T.�qK@��Zb �� щ������"� �Y-iA�b�|Xd~*�+bJ�/3ʓ"g"YywV������8�g�3 �D�. <>
<>>>
The most abundant fragment ion is usually the 3 carbon fragment, with the abundances of higher mass ions decreasing with increasing mass. If one of these ∆m values is larger than 16 mass units, use the Periodic Table to … Ions observed in the mass spectra of straight chain alkanes will usually appear in groups of 14 mass unit intervals (corresponding to one CH2 group difference). Institute of Physical Chemistry, Federal School of Technology, CH‐1015 Lausanne, Switzerland. 2 0 obj
stream
The full text of this article hosted at iucr.org is unavailable due to technical difficulties. 1 0 obj
�\n4(r��P����*��(�>�e�C;��
|�"���i�QV�(��2���Ev���B�+���>,������g?�h=��%U�� ���9+��&�2���*�IU�d�����߾�a��j���ﳢ��n&ugJ�L���Jz&�,S������S� Some Common Fragments at m/z include: 14 CH2 15 CH3 16 O 17 OH 18 H2O, NH4 Tino Gäumann, Mass Spectra of Double‐Bonded Groups, PATAI'S Chemistry of Functional Groups, (2009). �)�����ը��SѝKݹA% ��`��TR��υ��Հ:{���>|c;Jrb
��;���@5�}!��_���=-/��aI���!�*rU��7��0���j����8&\�S�r�|�ʠ�C�p�`0�f��~X�7c�TH���'�8-jT�2( ���v�C[���٧��Z���T�=~y�>|���ql�*�����F7�! Tino Gäumann. Number of times cited according to CrossRef: ChemInform Abstract: The Mass Spectra of Alkanes. The Mass Spectra of Alkanes. Learn more. Study Notes When interpreting fragmentation patterns, you may find it helpful to know that, as you might expect, the weakest carbon-carbon bonds are the ones most likely to break. Please check your email for instructions on resetting your password. 3 0 obj
Enter your email address below and we will send you your username, If the address matches an existing account you will receive an email with instructions to retrieve your username, By continuing to browse this site, you agree to its use of cookies as described in our, I have read and accept the Wiley Online Library Terms and Conditions of Use. %����
Use the link below to share a full-text version of this article with your friends and colleagues. Wiley Online Library T. GAEUMANN , ChemInform Abstract: The Mass Spectra of Alkanes , … Working off-campus? The full text of this article hosted at iucr.org is unavailable due to technical difficulties. If you do not receive an email within 10 minutes, your email address may not be registered, <>/ExtGState<>/Font<>/ProcSet[/PDF/Text/ImageB/ImageC/ImageI] >>/MediaBox[ 0 0 595.32 841.92] /Contents 4 0 R/Group<>/Tabs/S/StructParents 0>>
)��*a7�
0��'�*�,��aY� ��W��4��$$ƻ�9�G(*$�KWД�*�gv�W B��������]c����[�Z�f��R���w�G�ma��������l�Nrq����-/��'+��:��/[�V� %�e���)��� ���5J�}��NP7@��^$��q����C�����q���ߢR������;�-z�0룾��g�x�E5�c�����[k��o=�8��A���c����k.�:�J#FTr?wd�t����J6f=�rNgɨz&�e-P@�Pk���@���B�{�}���1������%`��VK�{"�b�'�p��-;����Q�؊T�H �FU=�9h1Ibj30��W�DՆj^�-|Wb^�$����P�3���mMj!j�>�w��'���B.��̬�V��JG�A�P~W�rl��CF�=�ڡb;Tl}B������!B09xc�%��Qw,�Ba� Olefinic Fragments—What is their Structure? Learn more. <>
Use the link below to share a full-text version of this article with your friends and colleagues. and you may need to create a new Wiley Online Library account.