XML : Error When Attempting to $ajax post to authorize.net API with XML Data

I am currently trying to make a request to the Authorize.net AIM api. I have successfully sent the post in Post Man. The issue I am having has to do with the fact that the posted data has to be in xml. When I try to set the data to xml as shown in the sample below, I receive an error of Unexpected token ILLEGAL. Any help with this error would be great. Additionally if there is a better way to format the xml for the post please let me know I have looked around allot with no success.

  $.ajax({      type     : "POST",      url      : "https://apitest.authorize.net/xml/v1/request.api",      data     : "<createTransactionRequest xmlns="AnetApi/xml/v1/schema/AnetApiSchema.xsd">    <merchantAuthentication>      <name>xxxxxxxxxxx</name>      <transactionKey>xxxxxxxxxxx</transactionKey>     </merchantAuthentication>    <refId>123456</refId>    <transactionRequest>      <transactionType>authCaptureTransaction</transactionType>      <amount>5</amount>      <payment>        <creditCard>          <cardNumber>5424000000000015</cardNumber>          <expirationDate>1220</expirationDate>          <cardCode>999</cardCode>        </creditCard>      </payment>      <order>       <invoiceNumber>INV-12345</invoiceNumber>       <description>Product Description</description>      </order>      <lineItems>        <lineItem>          <itemId>1</itemId>          <name>vase</name>          <description>Cannes logo </description>          <quantity>18</quantity>          <unitPrice>45.00</unitPrice>        </lineItem>      </lineItems>      <tax>        <amount>4.26</amount>        <name>level2 tax name</name>        <description>level2 tax</description>      </tax>      <duty>        <amount>8.55</amount>        <name>duty name</name>        <description>duty description</description>      </duty>      <shipping>        <amount>4.26</amount>        <name>level2 tax name</name>        <description>level2 tax</description>      </shipping>      <poNumber>456654</poNumber>      <customer>        <id>99999456654</id>      </customer>      <billTo>        <firstName>Ellen</firstName>        <lastName>Johnson</lastName>        <company>Souveniropolis</company>        <address>14 Main Street</address>        <city>Pecan Springs</city>        <state>TX</state>        <zip>44628</zip>        <country>USA</country>      </billTo>      <shipTo>        <firstName>China</firstName>        <lastName>Bayles</lastName>        <company>Thyme for Tea</company>        <address>12 Main Street</address>        <city>Pecan Springs</city>        <state>TX</state>        <zip>44628</zip>        <country>USA</country>      </shipTo>      <customerIP>192.168.1.1</customerIP>      <transactionSettings>        <setting>          <settingName>testRequest</settingName>          <settingValue>false</settingValue>        </setting>      </transactionSettings>      <userFields>        <userField>          <name>MerchantDefinedFieldName1</name>          <value>MerchantDefinedFieldValue1</value>        </userField>        <userField>          <name>favorite_color</name>          <value>blue</value>        </userField>      </userFields>    </transactionRequest>  </createTransactionRequest>",      dataType : "xml",      success  : function(msg){          console.log("success");      }      error    : function(msg) {          console.log("fail");      }  });